custom identity : add sign-up model, validate login, set-up authentication for users with email and password

tokens management : invalidate authorizations, tokens on logout and clean-up invalid token data. update pacakage versions for compatability. remove unnecessary injections.

Merge pull request #1 from suddulasanjay/postgres-migration

migrate to postgres

logout : revoke tokens after logout and invalidate corresponding authorization ids

sso : add user-info api, refactor logout api

authentication : add ccokie authentication, add sessions, user-clients, add initial migration

setup : add business entities , necessary packages and their configuration.