- corrected endpoint identifiers in bearer definitions in Compute

- adding deploy of slice component
- homogeneized bearer definitions in Compute

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

- removed unneeded sleep method

- Updated endpoint mapping for ECOC'22 scenario
- Swapped get-service and get-slice methods to priorize slices over services

- implemented delete of IETF L2VPN services/slices
- implemented diversity and availability constraints

- Corrected usage of ConfigRules to use new custom ConfigRules

- Moved imports from *.proto folder to common.proto folder
- Removed compute's genproto.sh script
- Minor code and linting fixing
- Arranged requirements to accelerate Docker image creation
- Updated Dockerfile
- Arranged GitLab CI/CD pipeline

- corrected device and endpoint names
- corrected bearer definitions
- deleted unneeded/redundant scripts
- removed code coverage from test executions
- added separate script for test and code coverage
- moved OFC'22 README to the tutorial folder

- not functiona, just skeleton to generate the demo paper.
- logic for disjoint paths to be implemented

- Migrated to use new generic Rest servicer
- Moved client declarations close to use places to prevent initialization locks
- Adaptations to comply with the new settings framework
- Updated unitary tests to use new generic Rest and gRPC servicers and clients
- Minor code styling/formatting

- Migrated to use new generic gRPC servicer
- Migrated to use new generic Rest servicer
- Migrated to use new settings framework
- Minor code formatting/styling

NBI IETF L2VPN:
- Added missing configuration attributes (BGP AS, BGP Route Target)

- aligned configuration of services to requirements for OpenConfig devices

- Added REST API Server to Compute component
- Factorized get settings from environment variabes into common method get_setting

Fix renaming of compute.proto methods from snake-case to camel-case. Added minor naming improvements.