WebUI component - Policy Tab issue

See merge request !103

- Corrected issue with policy tab

Tools - Perf Plots Generator

See merge request !102

- Added helper test script

- Added initial version of tool used to extract data from Prometheus and automatically generate histogram plots.

Improved Service Handler selection and PathComp Sub-Service inference

See merge request !101

- Code cleanup

- Corrected Resource Groups used to extrapolate SubServices

- Added log message in service handler selection when no suitable handler is found

- Added debug log messages in ComputeSubServices to track issues

Device and WebUI components - Improve AddDevice performance metrics

See merge request !99

- Temporarily moved old dashboard to separate folder

- Updated device details dashboard

- Updated detailed metrics for RPC methods (to be completed)

- Updated device details dashboard (to be completed)

- Updated device details dashboard

Merge branch 'develop' of https://labs.etsi.org/rep/tfs/controller into feat/device-improve-perf-metrics-per-driver

PathComp component - Backend: tuning

See merge request !98

- Increased data structure sizes

- Add driver name attribute to drivers
- Improve instantiation of per-driver MetricsPool
- Added detailed metrics for AddDevice RPC method

Load Generator: filter candidate src/dst devices and endpoints

See merge request !96

- Added fields in load generator tab to filter src/dst candidate device and endpoint

- Added logic to filter src/dst candidate device and endpoint
- Corrected DLT recording logic

- extend load generator with device and endpoint regex selectors

WebUI component: Added delete link button

See merge request !95

- Link detail: added delete button

Added status field num_released in Load Generator and WebUI

See merge request !94

- Added status field num_released in loadgen tab

- Added logic to track and report num_released requests

- extend load generator status with num_released requests

Add Policy tab to WebUI

See merge request !91

- Minor correction in policy template

New features in Load Generator

See merge request !92

- Updated dashboard for load generator's status