[WIP] Add parameters to include or exclude XcTestFile

[miguelslemos]

Hello, the purpose of this PR is to enable the ability to include or exclude the whole suite. In our case, we created a schema(AllTests) that builds all modules and then creates only a single * .xctestrun file that contains all the test suites. But we don't want to run all tests at once, because we do sharding by macOS nodes. So we built it once and share the artifact between the nodes, so we select few suites to run on each node

[miguelslemos]

Hey, I'm sorry this branch isn't ready for merging, I supposed this PR was open on my fork.

[ravimandala]

@miguelslemos Can you please rebase, resolve the conflicts and incorporate the code review comments? Thanks.