Default whether to exclude source control for Production configuration in the management portal

This method returns true if productions in the namespace are excluded from Source Control in the Production configuration portal page.
It will throw system errors such as Protect.

This method compares the class XData definition with that that would be be generated from the current runtime data for the production. It returns 1 if different.
It returns 0 if not different.
It returns 10 if an error is being returned.

This method sets the flag to control if productions in the current namespace are excluded from Portal Source control.
Protected by Use Privilege on resource %Admin_Manage. Throws $$$InsufficientPrivilegeForOperation if privilege not held.
Throws $$$InvalidArgument if exclude is not 1 or 0.
It will throw system errors such as Protect.