- corrected CI/CD pipeline

- added missing requirement
- corrected unitary test Topology

- updated run_tests_locally script
- updated GitLab CI/CD with NATS
- updated ContextModel and TopologyModel with created/updated
- added logic for Context and Topology events created/updated/deleted
- activated dependencies for test_connection
- activated event testing in Context and Topology entities
- corrected conftest for Context component

- Added backend for NATS message broker
- removed unneeded test script

- corrected metrics names

- corrected logger instantiation
- arranged performance collector for unit tests
- moved performance evaluation dump method to Metrics Pool

- corrected imports of Method Wrappers API

- corrected slice and service methods

- disabled Redis MessageBroker backend

- updated CI/CD pipeline

- updated CI/CD pipeline

- updated CI/CD pipeline

- corrected requirements
- updated CI/CD pipeline

- repositioned Database Engine class
- updated CI/CD pipeline

- updated to new Method Wrapper API

Performance Evaluation Framework + Helper Tools

See merge request !36

- extended grpc-to-enum tool to support arbitrary enum item names
- added PolicyRuleState enum model
- misc minor comment corrections
- misc import reorderings
- migrated Connection model and methods
- migrated PolicyRule model and methods
- removed unused files

- minor cosmetic changes

- updated policy rule object factory
- updated rpc method wrapper decorator's duration buckets

- moved relational models to associated classes
- migrated support for slice subslices
- added filters to prevent upsert when there is nothing to update

- removed old code
- implemented basic support for Slice entity
- implemented detailed perf eval report in unitary tests

- Implemented Debug API
- Implementing unitary debug API tests

- corrected ConfigRuleModel and methods
- corrected ConstraintModel and methods
- corrected ServiceModel and methods
- corrected ServiceEndPointModel
- added missing non-null constraints
- removed redundant column definition data
- removed unneeded lazy loading parameters
- added Service UUID generator
- implemented unitary test for Service entity

- relocated database methods
- corrected models to use single-column primary key
- corrected test cases

- cleaned up script run tests locally
- temporarily added script to automate test & coverage reporting
- reorganized unitary tests
- migration in progress to use single-column primary-key for main entities
- intermediate backup ; work in progress