UserManagement : Create Roles for various Personas.

[rajat-soda]

Issue/Feature Description:

• P3 : Roles to be created for
  - Multicloud User
  - On-Prem User
  - Admin User
  - CXO USer [optional]
  -
  Why this issue to fixed / feature is needed(give scenarios or use cases):

How to reproduce, in case of a bug:

Other Notes / Environment Information: (Please give the env information, log link or any useful information for this issue)