- Restored execute permissions

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

- corrected imports of Method Wrappers API

- removed unneeded comments from run_tests_locally*.sh in scripts folder
- minor improvement in report_coverage_all.sh
- added script to expose through the ingress controller the gRPC interfaces through the ingress controller for debug purposes

- initial skeleton (not functional)

- corrected unitary test file for device component
- arranged clients used by optical centralized attack detector
- Minor corrections in unitary test of Context component
- corrected skeleton for unitary tests of Slice component

Scripts:
- added missing commands to script run_tests_locally.sh

Device:
- added key formatting inside unsibscribe from monitoring
- added termination attribute in GetState to properly interrupt monitoring loops

Service:
- arranged service component testing, missing fixtures

Monitoring:
- added missing environment variable INFLUX_PORT

Common:
- added chk_attribute to type_checkers module.
- recovered run_tests_locally.sh

Compute:
- updated requirements.in
- updated Config.py
- updated RestServer
- implemented IETF-L2VPN NBI plugin
- implemented unitary tests for IETF-L2VPN NBI plugin including a Mock OSM client, and Mock Context and Service components

- Implement WIM REST API for OSM
- Implement IETFL2VPN REST API
- Implement unitary tests for OSM-Compute-Service workflow

- Implemented MonitorDeviceKPI RPC method
- Implemented Endpoint pre-configruation for Emulated Driver
- Implemented MockMonitoringService for testing Device monitoring capabilities
- Implemented Monitoring Loops to collect samples from drivers and forward them to Monitoring Service
- Test unit for Emulated Device Monitoring half implemented.
- Minor bug resolutions in OpenConfig Driver

Deactivated some Device monitoring functionality partially implemented to enable a functional commit into develop.

Device:
- Implemented Driver API with some special resources to enable retrieving endpoints from devices, interfaces, and network instances.
- Implemented special resource_keys (_connect/*) to enable AddDevice to obtain settings used to connect to remote devices (address, port, username, password, etc.)
- Implemented Emulated Driver (only for testing)
- Implemented OpenConfig Driver (missing to implement monitoring; templates for Infinera devices to be tested with other device vendors)
- Minor bugs and code improvements
- Improved test unit to enable easy testing of vendor devices and keep credentials secret.

Common:
- Normalized report_coverage_*.sh scripts, and temporarily summarized results in device one for testing purposes.
- Adapted run_tests_locally.sh script for testing purposes
- Improved message synthesis of ServiceException

Context:
- Improved ConfigModel helper functions

Device (intermediate backup):
- Removed DataCache since it reduces readability of the code. Moved database one level up.
- Improved ServicerImpl and moved DataCache functionality over there.
- Added condition to prevent AddDevice request from carrying a configuration.
- Multiple pre-work required for processing configuration differences in DeviceServiceServicerImpl.

- Added method to delete config rules when action is DELETE.
- Temporary changes in run_tests_local.sh scripts

- Multiple minor bug resolutions
- DeviceClient: solved logging bug
- EmulatedDriver: solved GetConfig bug and added event to prevent double connection requests
- DriverInstanceCache, DriverFactory: Added formatting of filter fields
- DataCache: solved minor bug
- DriverAPI test unit: corrected getconfig assertion check
- Device test unit: reimplemented, first complete test after component reworking
- DataCache/DeviceTools: solved several minor bugs
- DeviceServiceServicerImpl: added removal of drivers and endpoints when device is removed.