Summary:
## Summary
This diff does a bunch of things:
1. The TurboModule resolution algorithm on Android now supports C++ TurboModules.
2. `SampleTurboCxxModule` is moved from `ReactCommon/turbomodule/samples/platform/ios/` to `ReactCommon/turbomodule/samples` so that both iOS and Android can share it.
3. `CatalystTurboModuleManagerDelegate::getTurboModule(std::string, JSCallInvoker)` now understands and returns `SampleTurboCxxModule`.
Reviewed By: mdvacca
Differential Revision: D15253477
fbshipit-source-id: 3def91911b091f8cf93be17decd245a0499ed718