Windows ARM32 port

[er2off]

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This pull request adds Windows ARM32 support (WOA64 requires additional modifications)

Tasks:

• [x] Port SSE2NEON (maybe just add neonmath?)
• [x] Successful compilation and startup
• [x] Fix graphical glitches (vtf wrong aligment issue in MSVC)
• [ ] Fix fullscreen crash and completely wrong touchscreen handling
• [ ] Fix physics bugs
• [ ] Test on ARM64 (does not compile on VS2017 and I'm lazy to install VS2022) ~~- [] Remove SDL~~ (SDL was returned to support touch) ~~- [ ] Rewrite shaderapidx9 for DirectXMath (currently not running and no headers for *unix)~~

Build:

.\waf configure -T release --prefix=hl2 --msvc_targets=amd64_arm
.\waf install