Install per architecture onecore-uap headers by default too

[Riatre]

Starting 10.0.26100.0, some headers previously part of regular SDK headers been splitted into separate packages. #134 added the x86-x86 one which contains majority of headers but appearantly there are arch-specific packages too.

For x64 there's:

Program Files/Windows Kits/10/Include/10.0.26100.0/shared/ksamd64.inc

For arm64 there are:

Program Files/Windows Kits/10/Include/10.0.26100.0/shared/ksarm64.h
Program Files/Windows Kits/10/Include/10.0.26100.0/shared/kxarm64.h
Program Files/Windows Kits/10/Include/10.0.26100.0/shared/kxarm64unw.h

I came up with this trying to build cryptopp without CRYPTOPP_DISABLE_ASM=1, it tries to include ksamd64.inc.