Commit initial build workflow

.github/workflows/build.yaml

@@ -0,0 +1,43 @@
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master]
+
+env:
+  BUILD_TYPE: Release
+
+jobs:
+  build:
+    runs-on: ubuntu-22.04
+    defaults:
+      run:
+        shell: msys2 {0}
+
+    steps:
+      - uses: msys2/setup-msys2@v3
+        with:
+          install: mingw-w64-x86_64-toolchain
+          msystem: mingw64
+          release: false
+
+      - name: Install Qt
+        uses: jurplel/install-qt-action@v2
+        with:
+          version: "6.5.2"
+          host: "linux"
+          target: "desktop"
+          arch: "gcc_64"
+          dir: "${{github.workspace}}/qt/"
+          install-deps: "true"
+
+      - name: List files in Qt
+        run: find ${{env.Qt5_Dir}}
+
+      - uses: actions/checkout@v2
+
+      - name: Configure CMake
+        run: cmake -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} -DCMAKE_PREFIX_PATH="${{env.Qt5_Dir}}/lib/cmake/" -DQt5_DIR=${{env.Qt5_Dir}}/lib/cmake/Qt5/ -G "CodeBlocks - MinGW Makefiles" -B '${{github.workspace}}'/build
+
+      - name: Build
+        run: cmake --build '${{github.workspace}}'/build --target RePr