Improving the scripts and including the case where the ping times out and a minus one is sent to the monitoring component.

- Fixed L2NM service generation

Partial update of Scenario 2

See merge request !67

- Updated deploy_specs

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