Add support for Windows ARM

[bulenkov]

Not sure if it is easy or not to make support for a new architecture without a device, but I'm ready to help with testing :-)
https://www.windowscentral.com/hardware/laptops/surface/project-volterra-everything-you-need-to-know

[jansorg]

For https://github.com/BashSupport-Pro, I was able to successfully build winpty for Windows ARM64:

• I used Visual Studio 2022 Preview, https://visualstudio.microsoft.com/vs/preview/
• Changes for Winpty at Build winpty for Windows ARM64 BashSupport-Pro/winpty#1 . The build was working locally on an ARM device, but may not work on other devices (yet).
• The DLL seemed to load fine on the Windows ARM device (on a JBR 17 build for ARM64 with IU 2022.2), but I'm not sure if there are tests somewhere

Related:
For pty4j, building win-helper.exe was also possible.
But I couldn't find a Cygwin build for Windows Arm64 to build the cygwin helper.

[VladRassokhin]

VS 2017 Community on x64 host is also enough to cross-build ARM64 target. You'll need some additional (ARM64) components, though.

@bulenkov we're using our fork with some additional stuff JetBrains/winpty/get_current_directory for quite long time already.
So I've added one more branch on top of that — JetBrains/winpty/get_current_directory_arm64, built it and used in pty4j 0.12.10