Integration - NVSK to be developed as per the core backened

[TLSravani]

1. Changes required in config.csv file which supports NVSK configurations structure
2. Changes required in back end output directory
3. NVSK nodejs api code need to change according to cQube-core
4. Changes required in NVSK configurations file to support all data sources as common structure
5. Router changes required which supports common module
6. Common module need to develop which can build according to config.json file
7. Report tabs need to develop which can generate dynamically according to config.json file
8. Node apis to write for key_metrics and vanity_metric
9. NiFi configuration templates needs to migrated from cQube core ( cQube 1)
10. NiFi and postgres changes required to enable/accept aggregated data as a source.