Test Target Reconfiguration

[AnthonyMDev]

• Consolidates tests into targets for unit test, integration tests, performance test, and code gen tests.
• Moves integration test into new target that only runs on CI for easier local testing.
• Cleans up a few test
• Converts schemes to use XCTestPlans
• Configures CircleCI to use new test plans

[designatednerd]

Looks pretty solid, just a couple of questions!

[designatednerd]

Approved from a content standpoint, obviously we have to figure out what's giving circle a sad. You may need to turn off XCPretty to get the full log barf, but i can't repro this locally either, so you may have to remote in to the running tests 😭