Update User Details Component

[vignesh-6145]

Requirements

• [x] Create a REST call which should update the user
• [x] Constraints failed should be visible in Response
• [x] Response codes should be meaning full
• [x] Should return the updated Record

[vignesh-6145]

Detailed updates

• passwords are not ignored in the response
• InvalidActionException was thrown when Date Of Join(DOJ) was tried to modify it
• InvalidPasswordException was thrown when password was tried to modify it
• PUT request was used
• Password was included in response
• Code refactoring was done such that the endpoint methods returns ResponseEntities