Build and test the project.

.github/workflows/build.yaml

@@ -0,0 +1,36 @@
+name: Pull Request Tests
+
+on:
+  pull_request:
+
+jobs:
+  build:
+    steps:
+      - name: Check out project files
+        uses: actions/checkout@v3
+
+      - name: Set up dotnet
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: '8.0.x'
+
+      - name: Download and install FBXSDK files
+        run: |
+          apt update ; apt -y install gcc g++ make curl wget libxml2-dev zlib1g-dev
+
+          # download and build libiconv
+          mkdir -p /build/libiconv
+          cd /build/libiconv
+          wget http://ftp.gnu.org/pub/gnu/libiconv/libiconv-1.11.tar.gz ; tar -xvf libiconv-1.11.tar.gz
+          cd /build/libiconv/libiconv-1.11
+          ./configure ; make ; make install ; make check ; make install
+
+          mkdir -p /build/fbxsdk
+          wget https://www.autodesk.com/content/dam/autodesk/www/adn/fbx/2020-3-4/fbx202034_fbxsdk_linux.tar.gz
+          wget https://damassets.autodesk.net/content/dam/autodesk/www/adn/fbx/2020-3-4/fbx202034_fbxsdk_linux.tar.gz
+          mkdir -p /usr/share/fbxsdk/2020.3.4 
+          printf 'yes\nn\n' | /build/fbxsdk/fbx202034_fbxsdk_linux /usr/share/fbxsdk/2020.3.4
+
+      - name: Build and run tests
+        run: |
+          ./all_build.sh