tests: conditionalize test output for in-filesystem pyoxidizer resources The in-memory pyoxidizer builds apparently behave as expected.

hghave: add predicates for embedded and filesystem pyoxidizer resources There are a handful of tests with different output between the two flavors of pyoxidizer builds (like the location of the modules and templates), and a few others that avoid `known-bad-output` cases with the embedded resources that shouldn't cause the tests to fail.

run-tests: support --pyoxidized on macOS We should definitely be able to test this before releasing it with an installer.