Add initial GitHub actions workflow

.github/workflows/release.yml

@@ -0,0 +1,50 @@
+name: Release Build
+
+on:
+  push:
+    branches:
+      - master
+env:
+  BUILD_TYPE: Release
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Create Build Environment
+      # Some projects don't allow in-source building, so create a separate build directory
+      # We'll use this as our working directory for all subsequent commands
+      run: cmake -E make_directory ${{runner.workspace}}/build
+
+    - name: Configure CMake
+      # Use a bash shell so we can use the same syntax for environment variable
+      # access regardless of the host operating system
+      shell: bash
+      working-directory: ${{runner.workspace}}/build
+      # Note the current convention is to use the -S and -B options here to specify source 
+      # and build directories, but this is only available with CMake 3.13 and higher.  
+      # The CMake binaries on the Github Actions machines are (as of this writing) 3.12
+      run: cmake $GITHUB_WORKSPACE -DCMAKE_BUILD_TYPE=$BUILD_TYPE
+
+    - name: Build
+      working-directory: ${{runner.workspace}}/build
+      shell: bash
+      # Execute the build.  You can specify a specific target with "--target <NAME>"
+      run: cmake --build . --config $BUILD_TYPE
+
+# Tests are still WIP
+#   - name: Test
+#     working-directory: ${{runner.workspace}}/build
+#     shell: bash
+#     # Execute tests defined by the CMake configuration.  
+#     # See https://cmake.org/cmake/help/latest/manual/ctest.1.html for more detail
+#     run: ctest -C $BUILD_TYPE
+
+    - name: Upload compilied binary
+      uses: actions/upload-artifact@v2
+      with:
+          name: Release build
+          path: ${{runner.workspace}}/build/aptdec