WSA/ARM plugin

[chezulkhairi]

Hi Peter,

At the moment, this is for WSA/ARM64.
and, since the winmd is targeted for ARM64, this cannot be compiled in VS for ARM.

I have another dll that uses ARM(which does not work for ARM64), therefore it conflicts with this HL2UnityPlugin.winmd.
Can you put in a branch for ARM as well for this HL2 plugin?

Thanks, Zul