Revision of OpenConfigDriver

See merge request !37

- Restored LoadGen default parameters

- Updated Netconf/OpenConfig log messages

- Updated Netconf/OpenConfig descriptor files
- Normalized variable names in OpenConfigDriver
- Minor code cleanup

- Reduced log levels to INFO
- Generalized paths
- Minor code and comment cleanup

Slice Grouping

See merge request !64

- Added indexes recommended by Cockroach internal planner to boost performance
- Added extra foreign-key indexes to enhance constraint validation

- Removed manual changes in my_deploy.sh

- Removed unneeded README.md file

- Updated number of 9's for availability

Minor cosmetic change in Hackfest/Mock OSM tool

See merge request !65

- Added new field availability in SLA Availability update

- Minor code cleanup

- Updated number of 9's for availability

- Updated number of 9's for availability

- Disabled slice grouping by default

feat/xr_device_driver_service_tool

See merge request !63

- Added indexes recommended by Cockroach internal planner to boost performance

Add relese/2.0.1 fixes

See merge request !62

- Added close connection to enable load balancing in requests

- Added availability percentage to SLA Availability constraint

- Removed availability percentage from SLA Availability constraint (new feature)

- Added availability percentage to SLA Availability constraint

- Added availability percentage to SLA Availability constraint

- Added availability percentage to SLA Availability constraint

- Removed availability percentage from SLA Availability constraint (new feature)

- Removed availability percentage from SLA Availability constraint (new feature)

- Removed availability percentage from SLA Availability constraint (new feature)

- Reduced number of digits to 2 in SLA values