1. Fix: Build is breaking due to unused vars

1.  Chore: Remove unwanted logs

1. Fix: Panic if role based type not present.

1. Fix: Error suppressed in CallService(). This makes users unaware of the actual error from called service.

Error code and error addition in grpc response

grpc fixes

Removed and restructured code

listner changes for grpc

GRPC changes coresls with latest updates 

1. Fix: 412 jwt precondition failed. The open request was setting empty token in response causing 412 for further restricted requests.

1. Add: Process post hook for nil data

1. Fix: Panic if selected single object is not included in final result. The post hook was dereferrencing nill data resulting in panic.

1. Fix: Rolebased services can be accessed by restricted user

1. Add: Service caller, calls a service by name from bl

This reverts commit 5571f2a3