Context & Device Performance Enhancements

See merge request !87

- Minor cosmetic changes

- Recovered deploy specs

- Updated default histogram set of buckets

Merge branch 'develop' of https://labs.etsi.org/rep/tfs/controller into feat/context-performance-scalability

- Recovered deploy specs

- Updated default histogram set of buckets

- Updated Cockroach manifests to download latest revisions and bug fixes for CockroachDB

- Cosmetic changes

- Implemented method UnsetService()

- Added SQL code file with possible performance details to be investigated and exploited

- Added deploy specs for testing

- Instrumented ConfigureDevice method

- Added new grafana dashboard for extracting performance details on ConfigureDevice method.

- Updated default histogram set of buckets

- Removed hardcoded histogram buckets

- Removed hardcoded histogram buckets

- Removed hardcoded histogram buckets

- Removed hardcoded histogram buckets
- Removed unneeded delete rules
- Corrected order of delete rules

- Corrected metrics labels

- Removed hardcoded histogram buckets

- Removed hardcoded histogram buckets

- Removed hardcoded histogram buckets

- Expanded default histogram set of buckets

- Updated Device requested and limit resources

- Updated ConfigRuleModel and separated it into DeviceConfigRuleModel, ServiceConfigRuleModel, SliceConfigRuleModel
- Updated ConstraintModel and separated it into ServiceConstraintModel, SliceConstraintModel
- Updated related indexes
- Activated placeholder for device components
- Updated compose_config_rules_data and upsert_config_rules methods
- Updated compose_constraints_data and upsert_constraints
- Correction of method name SelectDevices to SelectDevice in gRPC servicer

- Added helper sql file with command for tests

- Updated get_device calls according to new Common.Tools.ContextQueries methods

- Replaced old local ContextGetters by new Common.Tools.ContextQueries

- Updated old get_slice calls to new get_slice_by_uuid/_by_id

- Updated old get_service calls to new get_service_by_uuid
- Updated old get_slice calls to new get_slice_by_uuid

- Updated old get_slice calls to new get_slice_by_uuid

- Added get_connection_by_id and get_connection_by_uuid methods
- Updated old get_service method to get_service_by_id and get_service_by_uuid
- Updated get_service method to use new SelectService context method and filter options
- Updated old get_slice method to get_slice_by_id and get_slice_by_uuid
- Updated get_slice method to use new SelectSlice context method and filter options
- Updated get_device method to use new SelectDevice context method and filter options

- Updated Service and Slice requested and limit resources

Fix issue of `load-generator` when device names include the "-EMU" suffix

See merge request !88