(PUP-2609) Make copying permissions on Win an error

Copying permissions on Windows are problematic, so it isn't done. Change
the deprecation warning about source_permissions => use/use_when_creating
to an error.
(PUP-2609) Update Metadata default permission

Update Metadata's default permission model to ignore source permissions,
and remove unreachable code. Update spec tests for new behavior.
Merge pull request #3226 from MikaelSmith/task/master/PUP-2609-Windows-error-on-use-source-permissions

(PUP-2609) Windows error on use source permissions