Feature/mac arm (#466)

* Create ccpp-macos-arm.yml

* Update ccpp-macos-arm.yml

* Update ccpp-macos-arm.yml

.github/workflows/ccpp-macos-arm.yml

@@ -0,0 +1,52 @@
+name: Mac-arm Build
+
+on:
+  push:
+    branches: 
+        - main
+        - feature/* 
+        - bugfix/*
+        - develop
+        - bugfix/*
+  pull_request:
+    branches: [ develop ]
+
+jobs:
+  build:
+    runs-on: macos-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: update submodules
+      run: git submodule update --init --recursive --remote
+    - name: configure python venv
+      run: python -m venv myEnv
+      working-directory: rendertests
+    - name: install render test requirements
+      run: source myEnv/bin/activate && pip3 install -r requirements.txt
+      working-directory: rendertests
+    - name: install boost
+      run: brew install boost
+    - name: configure
+      run: cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_OSX_ARCHITECTURES="arm64" ..
+      env:
+        WM_DOWNLOAD_EXTERNALS: 0 # for some reason the boost build fails here: seems not to find the right toolset (for the first run, the second try succeeds)
+      working-directory: build
+    - name: build
+      run: cmake --build .
+      working-directory: build
+    - name: test
+      run: ./rehearse
+      working-directory: build
+    - name: run rendertests
+      run: source myEnv/bin/activate && python3 runtests.py
+      continue-on-error: true
+      working-directory: rendertests
+    - name: pack
+      run: cmake --build . --config Release --target package
+      working-directory: build
+    - uses: actions/upload-artifact@v4
+      with:
+        name: werckmeister-mac-${{ github.sha }}
+        path: |
+          build/werckmeister-*-Darwin.pkg
+          rendertests/*.mid