This will make the `next` buildsystem no longer the `next`, but the
`actual`. The idea is to simplify the build, removing scripts, to
make the platform buildsystem generated by CMake more compatible
with IDEs and make development more streamlined. It will also make
cross compilation easier.
* [test-runner] Setup iOS RenderTestRunner
* [test-runner] Make app runnable on firebase
* Add iOS platform dependent expectation and ignores; Run prepare script via cmake
* Make RenderTestRunner report test status