cube: Support runtime selection of WSI platform #104

Job	Run time
chromium	1m 41s
codegen	26s
linux (gcc, g++, Debug, ubuntu-20.04, XCB)	1m 14s
android (armeabi-v7a)	39s
linux (gcc, g++, Debug, ubuntu-22.04, XCB)	1m 12s
mac	11m 24s
android (arm64-v8a)	38s
linux (gcc, g++, Release, ubuntu-20.04, XCB)	1m 10s
mingw	2m 49s
linux (gcc, g++, Release, ubuntu-22.04, XCB)	1m 5s
linux (gcc, g++, Release, ubuntu-22.04, WAYLAND)	1m 9s
tools_codegen	45s
linux (clang, clang++, Debug, ubuntu-20.04, XLIB)	1m 6s
linux (clang, clang++, Release, ubuntu-22.04, DISPLAY)	1m 15s
windows (Win32, Debug, windows-latest)	1m 34s
windows (Win32, Release, windows-latest)	1m 33s
windows (x64, Debug, windows-latest)	1m 35s
windows (x64, Release, windows-latest)	1m 27s
	32m 42s

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