Service component:
- fixed dependency tracking for service teardown

WebUI component:
- fixed wrong labels and values in service template
- fixed wrong labels and values in slice template

- added tester for TaskScheduler

ECOC'22 test:
- added CTTC OLS and Automation component deployment to script

Common:
- corrected DeviceType name for transponder

Compute:
- added bearer definitions for ECOC'22 demo
- removed hard errors and replaced by warning log messages
- forced to use VPLS, i.e., always slices
- added definition of L2-VPN service settings

Device component:
- forced to use emulated devices for openconfig devices (just for demo purposes, for the sake of reducing demo time)
- added commit_per_delete setting in OpenConfigDriver
- improved detection of PORT components for ADVA devices

PathComp-Frontend component:
- added default settings for TAPI connections
- corrected reply composition; subservices were added wrongly
- added log lines for debug purposes

Service component:
- corrected ConfigRules for L2NM Emulated Service Handler
- adapted TAPI Service Handler to new framework
- added log lines in TaskScheduler compose_from_service (debugging)
- TaskScheduler compose_from_service does not retrieve all resources (debugging)
- removed ConnectionExpander from Tasks ConfigureConnection and DeconfigureConnection

WebUI component:
- minor improvements

Merge branch 'feat/webui' of https://gitlab.com/teraflow-h2020/controller into feat/ecoc22-dc-interconnect-disjoint

Merge branch 'develop' of https://gitlab.com/teraflow-h2020/controller into feat/ecoc22-dc-interconnect-disjoint

- minor formatting in service page
- minor formatting in slice service page

- Adding slice page
- Format constraints

refactor(policy): integrate monitoring protobuf updates

See merge request teraflow-h2020/controller!167

- added timestamp to log lines

OpenConfig Driver:
- first implementation of L2-VPN configuration (under review and testing)

- removed unneeded sleep method

- improved objects_factory : Service-related methods

- added timestamp to log lines
- resolved infinite loop in TaskScheduler
- improved logging in TaskScheduler
- minor bug-fixing in dumy L2NMEmulatedServiceHandler

- corrected Objects_DC_CSGW_TN scenario file
- minor corrections and formatting of functional tests

Merge branch 'develop' of https://gitlab.com/teraflow-h2020/controller into feat/ecoc22-dc-interconnect-disjoint

Slice component

See merge request teraflow-h2020/controller!176

- clean-up old files
- update requirements.in

- Added timestamp to logs
- Implemented DeleteSlice method
- Enhanced create/update slice logic

Merge branch 'develop' of https://gitlab.com/teraflow-h2020/controller into feat/ecoc22-dc-interconnect-disjoint

Multiple changes in Context component:

See merge request teraflow-h2020/controller!175

Common:
- Extended context proto with 2 methods: UnsetService and UnsetSlice

Context component:
- Added timestamp to logs
- Added methods UnsetService and UnsetSlice to Context client
- Implemented methods UnsetService and UnsetSlice in Context servicer
- Resolved conflict between service and slice entities with constraints and configrules

Merge branch 'develop' of https://gitlab.com/teraflow-h2020/controller into feat/ecoc22-dc-interconnect-disjoint

PathComp component improvements

See merge request teraflow-h2020/controller!174

Merge branch 'feat/pathcomp-component-frontend' of https://gitlab.com/teraflow-h2020/controller into feat/pathcomp-component

Merge branch 'feat/pathcomp-component-backend' of https://gitlab.com/teraflow-h2020/controller into feat/pathcomp-component

- Added timestamp to logs
- Improved algorithm execution logs
- Added basic support for multi-layer path computation
- Improved KDisjointPath Algorithm with basic multi-layer support
- Minor improvements in backend request composition
- Removed unneeded code for unitary tests
- Added OLS-flavoured unitary test scenario

- Increased number of supported topology nodes.
- To be improved with dynamic memory.

Merge branch 'feat/webui' of https://gitlab.com/teraflow-h2020/controller into feat/ecoc22-dc-interconnect-disjoint

Main page:
- Change page title to "ETSI TeraFlowSDN Controller"
- Add slogan "Open Source for Smart Networks and Services" next to the logo (on top)
- Change Logo and Icon

About page:
- Change title to "ETSI TeraFlowSDN Controller"
- Remove link "TeraFlow H2020 webpage" and add link "ETSI Open Source Group for TeraFlowSDN" pointing to: https://tfs.etsi.org/
- Remove partners logo

Service detail page :
- Show correct Service Type instead of integer
- Show service status
- Format configurations as in device details
- Format constraints as in device details
- Add constraints
- Format endpoints and add device uuid

Service page:
-Remove constraints

Link detail page:
-Add device uuid to the endpoints table

- Renamed OldBigNet scenario to BigNet
- Updated JSON descriptor builder scripts
- Generated descriptor files for scenario
- Updated definition of functional tests

Merge branch 'develop' of https://gitlab.com/teraflow-h2020/controller into feat/ecoc22-dc-interconnect-disjoint

Context/Device/Service/PathComp/tests/WebUI component fixes and improvements

See merge request teraflow-h2020/controller!173

- Renamed DependencyResolver to TaskScheduler
- Enhanced TaskScheduler with an extensible Task API framework and extensible dependency resolver
- Created TaskExecutor providing an extensible task execution environment
- Removed in-memory database; now is stateless and interrogates/updates Context when needed
- Extended gRPC servicer to use new TaskScheduler
- Removed unneeded files and re-organized helper methods
- Extended ServiceHandlerAPI; now SetEndpoint/DeleteEndpoint enables to configure/deconfigure a connection
- Moved ServiceHandlerFactory-related methods to the appropriate file
- Created ConnectionExpander to resolve from ERO-like paths to lists of links
- Created basic tasks: ServiceSetState, ServiceDelete, ConnectionConfigure, ConnectionDeconfigure
- Added skeleton for L2NMEmulatedHandler (to be adapted, now is a copy of L3NM one)

- Added methods to copy endpoints, constraints and config rules from request to slice stored in Context component.

- Improved formatting of scenario DC-CSGW-TN
- Created clone of scenario DC-CSGW-TN including OLS
- Cleaned up bootstrap and delete service unitary tests
- Renamed device type OPTICAL_LINE_SYSTEM to OPEN_LINE_SYSTEM