Added status for roles and option to delete roles and enable/disable roles

@vishwasbabu 

1. Added Sql Script : V230__role_status_and_correspoding_permissions.
2. Added new features : disable or enable and delete Role
For enable or disable : values id DB m_role 0 or 1
For delete : Hard delete row from table 
3. If role associated with any one user we can not delete or disable the role
not required...