Protect fields per list per usergroup(s)


It' possible to protect individual fields per List per Usergroup on the List customization page.
Next attributes can be defined for any field (standard or custom field except Labels) on any Tab:
When field is moved to another Tab its protection does not change
If Tab is protected (for now only visibility protection is supported for Tab), configurator cannot change visibility of the fields on this Tab,
but can change Edit/ReadOnly in case when Tab is Visible for Usergroup