Changes for support Users module in Worklow module.

Added enhancement label

@its4you, Can you explain real time scenario on this issue.

If you search in your forum for notification for users you will find some articles:

Email Notification on creation of new system user https://discussions.vtiger.com/index.php?p=/discussion/182648 New user created and notification ..... https://discussions.vtiger.com/index.php?p=/discussion/182617

So main functionality is send notification if user is created/modified so the admin of system (not only user with admin right) can check if the new user is created/changed correctly. We have create a following workflows if login!= admin set status to inactive and another workflow task send notification to main admin of system. Main admin check added information about user and then set this user as active and the user can now login into CRM. This has sense if the comapny has many Branches in many Countries and main admin is notified about user creation/modification.

This need further validation and impact testing with workflow tasks. Few tasks on workflow (Update Fields) when run on User module could create trouble - if the underlying privileges are not run.

Added need_refinement label

@prasad I think the solution is to just disable update fields for users module, in workflow task table