add new variants of form-on-wing and stay-still #5072

Job	Run time
Windows (Debug, MSVC, Win32)	16m 52s
Mac (Debug, clang, x86_64)	5m 7s
Windows (Debug, MSVC, x64)	15m 33s
Mac (Debug, clang, arm64)	7m 21s
Linux (Debug, gcc-9)	13m 9s
Windows (Release, MSVC, Win32)	19m 46s
Mac (Release, clang, x86_64)	5m 56s
Linux (Debug, gcc-13)	10m 14s
Windows (Release, MSVC, x64)	21m 14s
Mac (Release, clang, arm64)	5m 59s
Linux (Debug, clang-16)	14m 28s
Linux (Release, gcc-9)	18m 9s
Linux (Release, gcc-13)	13m 15s
Linux (Release, clang-16)	19m 46s
Linux (Debug, gcc-13, -DFSO_BUILD_WITH_OPENGL=OFF -DFSO_BUILD_WITH_VULKAN=OFF)	10m 14s
Linux (Release, gcc-13, -DFSO_BUILD_WITH_OPENGL=OFF -DFSO_BUILD_WITH_VULKAN=OFF)	12m 34s
	3h 29m 37s

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