- extend load generator with max number of workers

- extend load generator with service constraints (availability, capacity and latency)

- Added SelectDevice, SelectService, SelectSlice RPC methods
- Corrected relationship import modes
- Added options to selectively load relations according to method

- Added device type "TeraFlowSDN controller"
- Added driver type for IETF L2VPN
- Updated corresponding components

- implemented enhanced methods to control load generator form WebUI

- extended Constraint_SLA_Availability with field availability

- Restored execute permissions

- Added/Updated headers
- Added script to update copyright headers

- Added gRPC method to retrieve names of endpoints and devices
- Added gRPC method to retrieve topology details

- Converted load_gen tool into a microservice
- Added simple WebUI page to manage it
- Created manifests, Dockerfile, etc.
- Created proto file to manage the load generator

- added field "name" to endpoint

- DLT connector: added flag to delete records

- added field name in context
- added field name in topology
- added field name in device
- added field name in link
- added field name in service
- added field name in slice

Georgios Katsikas authored Oct 06, 2022 and famelis committed Dec 12, 2022

Signed-off-by: Georgios P. Katsikas <gkatsikas@ubitech.eu>

- updated proto definition to include the domain that originates the record
- updated proto definition to include RecordLink and RecordAllLinks methods
- updated proto definition to provide the domain for which RecordAll* methods should be executed
- updated DltConnectorClient accordingly
- implemented RecordDevice and RecordLink in DltConnectorServicer
- removed unused OwnDomainFinder
- first functional version of DltEventDispatcher (only processes Devices and Links, by now)

This commit provides support for automated invokation
of the ztpUpdate RPC upon a DEVICE_UPDATED event.
When this event is triggered, the Automation component
fetches the associated device configuration and applies
it to the device.

Signed-off-by: Georgios Katsikas <katsikas.gp@gmail.com>

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

Common:
- temporarily added backend to pathcomp service for debug purposes

Proto:
- Added KDisjointPath Algorithm to pathcomp proto

Frontend:
- refactored Servicer to cope with multiple algorithms
- added implementation of ShortestPath algorithm
- added implementation of KShortestPath algorithm
- added implementation of KDisjointPath algorithm (partial)
- moved PathComp servicer tools to algorithms subfolder
- added new unitary test scenario (DC's with CellSiteGWs and Transport Network) to validate KDisjointPath algorithm

Merge in XRCA/teraflow from vhallivu/XR_OPTICS_DRIVER_LOGIN_TO_CM to xr_development

Squashed commit of the following:

commit ba53d51d94c52491c4f70587187bf6746a9613da
Author: Ville Hallivuori <VHallivuori@infinera.com>
Date:   Fri Aug 5 13:26:40 2022 +0300

    Initial code for XR Device Driver, can connect to CM and acquire access token. No other functionality

- Slice: added config rules
- Added EndpointPriority constraint
- Modified IsolationLevel constraint to contain a repetition of items