HUBS-691: Support for SSH and Kerberos auth using DCT's Environment API parameters ase_db_use_kerberos_authentication, use_kerberos_authentication, use_engine_public_key
HUBS-773: Update poll status function to use updated Job Status Enums from DCT
Testing:
Added new env using Kerberos auth > Successful
Added new env using SSH auth > Successful
Added VDB config template during VDB provision by snapshot > Successful
This PR adds following:
Testing: