Add formal deprecation notices to reviewboard.hostingsvcs.forms.
Review Request #14585 — Created Sept. 4, 2025 and updated — Latest diff uploaded
A while ago, we moved most of the actual base hosting service forms into
reviewboard.hostingsvcs.base.forms. The old
reviewboard.hostingsvcs.formsmodule had forwarding imports and a
comment about deprecation, but we didn't have any actual deprecation
warnings. This adds deprecation warnings for everything in that module,
and updates dependent code to use the new names.
Ran unit tests.