pen: Initial attempt at Windows pen support. #257

Job	Run time
Create test plan	7s
level1 / Haiku	2m 0s
level2 / Sony PlayStation 2	4m 54s
level2 / Windows (msys2, mingw32)	8m 53s
level2 / Steam Linux Runtime (Sniper)	2m 56s
level2 / RISC OS	1m 18s
level2 / Ubuntu 20.04 (Intel Compiler)	4m 33s
level2 / NetBSD	2m 30s
level2 / Android (Gradle)	2m 27s
level2 / Sony PlayStation Vita (GLES w/ PVR_PSP2)	3m 13s
level2 / Android (Android.mk)	1m 10s
level2 / FreeBSD	2m 49s
level2 / Android (CMake, lean)	2m 56s
level2 / Windows (msys2, clang32)	7m 14s
level2 / Windows (MSVC, clang-cl x86)	5m 49s
level2 / Windows (msys2, ucrt64)	8m 19s
level2 / Windows (MSVC, clang-cl x64)	5m 42s
level2 / Windows (msys2, clang64)	5m 41s
level2 / Ubuntu 22.04	4m 25s
level2 / Emscripten	9m 12s
level2 / Windows (msys2, mingw64)	8m 8s
level2 / LoongArch64	2m 51s
level2 / iOS (CMake & xcode)	1m 53s
level2 / Windows (MSVC, x86)	4m 53s
level2 / tvOS (CMake & xcode)	1m 52s
level2 / Sony PlayStation Portable	3m 40s
level2 / PowerPC	1m 54s
level2 / PowerPC64	1m 54s
level2 / Nintendo 3DS	1m 56s
level2 / GDK (MSVC, x64)	1m 37s
level2 / MacOS (Framework) (arm64)	2m 17s
level2 / MacOS (GNU prefix)	2m 58s
level2 / Ubuntu 20.04 (Intel oneAPI)	6m 29s
level2 / Android (CMake)	2m 39s
level2 / Windows (MSVC, x64)	4m 38s
level2 / MacOS (Framework) (x64)	6m 22s
level2 / Sony PlayStation Vita (GLES w/ pib)	3m 14s
level2 / Ubuntu 20.04	4m 35s
level2 / Windows (MSVC, ARM64)	3m 58s
level2 / Windows (MSVC, ARM)	4m 0s
	2h 37m 56s

Provide feedback