Add YosysHQ/abc as a submodule located in abc. #4256

	name: Visual Studio Build

	on: [push, pull_request]

	jobs:
	yosys-vcxsrc:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	submodules: true
	- name: Build
	run: make vcxsrc YOSYS_VER=latest
	- uses: actions/upload-artifact@v4
	with:
	name: vcxsrc
	path: yosys-win32-vcxsrc-latest.zip

	build:
	runs-on: windows-2019
	needs: yosys-vcxsrc
	steps:
	- uses: actions/download-artifact@v4
	with:
	name: vcxsrc
	path: .
	- name: unzip
	run: unzip yosys-win32-vcxsrc-latest.zip
	- name: setup-msbuild
	uses: microsoft/setup-msbuild@v1
	- name: MSBuild
	working-directory: yosys-win32-vcxsrc-latest
	run: msbuild YosysVS.sln /p:PlatformToolset=v142 /p:Configuration=Release /p:WindowsTargetPlatformVersion=10.0.17763.0

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