- added context "admin" as default for slices

- corrected SetService when no endpoints are provided

- corrected device name retrieval
- corrected composition of router_ids and and IP addresses
- minor code formatting

- corrected service name of load generator

- corrected load generator commands

- Corrected Dockerfile

- added dependencies for load generator

- 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

- improved device details page

- removed unneeded log messages

- improved name reporting of devices and links

- testing session management

- corrected generation of default uuid for topology entities

- testing session management

- testing session management

- testing session management

- testing session management

- testing session management

- corrected generation of default uuid for context entities

- corrected retrieval of context/topology names

- minor bug resolution

- corrected retrieval of topologies

- added default values to context/topology UUID generation functions
- extended endpoint UUID generation function to allow default values for ontext/topology

- corrected selection of context/topology based on new uuid/name separation

- updated definition of constant DEFAULT_CONTEXT_UUID to DEFAULT_CONTEXT_NAME
- updated definition of constant DEFAULT_TOPOLOGY_UUID to DEFAULT_TOPOLOGY_NAME
- updated definition of constant INTERDOMAIN_TOPOLOGY_UUID to INTERDOMAIN_TOPOLOGY_NAME

- updated definition of constant DEFAULT_CONTEXT_UUID to DEFAULT_CONTEXT_NAME
- updated definition of constant DEFAULT_TOPOLOGY_UUID to DEFAULT_TOPOLOGY_NAME
- updated definition of constant INTERDOMAIN_TOPOLOGY_UUID to INTERDOMAIN_TOPOLOGY_NAME

- updated definition of constant DEFAULT_CONTEXT_UUID to DEFAULT_CONTEXT_NAME
- updated definition of constant DEFAULT_TOPOLOGY_UUID to DEFAULT_TOPOLOGY_NAME

- updated definition of constant DEFAULT_CONTEXT_UUID to DEFAULT_CONTEXT_NAME
- updated definition of constant DEFAULT_TOPOLOGY_UUID to DEFAULT_TOPOLOGY_NAME

- disabled event testing; operation works, but sometimes tests get stuck
- added dynamic wait for CockroachDB and NATS containers to start
- tuned grace shutdown period
- improved NatsBackend termination

- added smart wait for crdb and nats to start

- added clean-up commands for the GitLab runner

- corrected unitary test order and one-by-one execution
- extractedunitary test constant to separate file
- added updated_at refresh for Service and Slice entities
- corrected return types for Connection entity
- prepared PolicyRule entity to raise events and corrected return types of methods

- testing CI/CD pipeline

- configured constant with event collection timeout for unitary tests and debug purposes
- cosmetic changes
- migrated event reporting for Connection entity

- cosmetic changes