Add composable build workflow #1046

	name: Build MLSpp

	inputs:
	crypto:
	required: true

	env:
	VCPKG_REPO: ${{ github.workspace }}/vcpkg
	CACHE_VERSION: v01
	CACHE_NAME: vcpkg

	runs:
	using: "composite"
	env:
	BUILD_DIR: "${RUNNER_TEMP}/build_${{ inputs.crypto }}"

	steps:
	- name: Checkout repository and submodules
	uses: actions/checkout@v4
	with:
	submodules: recursive
	fetch-depth: 0

	- run: \|
	git -C ${{ env.VCPKG_REPO }} rev-parse HEAD > vcpkg_commit.txt

	- name: Restore Cache
	uses: actions/cache@v3
	with:
	path: ${{ github.workspace }}/build/cache
	key: ${{ env.CACHE_VERSION }}-${{ env.CACHE_NAME }}-${{ runner.os }}-${{ hashFiles('vcpkg_commit.txt', 'alternatives/*/vcpkg.json') }}
	restore-keys: \|
	${{ env.CACHE_VERSION }}-${{ env.CACHE_NAME }}-${{ runner.os }}

	- name: Dependencies (macOs)
	if: ${{ runner.os == 'macos-latest' }}
	run: \|
	brew install llvm pkg-config nasm
	ln -s "/usr/local/opt/llvm/bin/clang-format" "/usr/local/bin/clang-format"
	ln -s "/usr/local/opt/llvm/bin/clang-tidy" "/usr/local/bin/clang-tidy"

	- name: Dependencies (Ubuntu)
	if: ${{ runner.os == 'ubuntu-latest' }}
	run: \|
	sudo apt-get install -y linux-headers-$(uname -r) nasm

	- name: Build
	run: \|
	cmake -B "${{ env.BUILD_DIR }}" -DTESTING=ON -DVCPKG_MANIFEST_DIR="alternatives/${{ inputs.crypto }}"
	cmake --build "${{ env.BUILD_DIR }}"

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