Configure CI/CD build to properly build OrcaSlicer with Protobuf and codegen

build_release_vs.bat

@@ -126,6 +126,15 @@ if "%1"=="deps" goto :done
 :slicer
 echo "building Orca Slicer..."
 cd %WP%
+
+echo "generating config sources from proto..."
+pip install grpcio-tools -q
+python tools/run_codegen.py
+if errorlevel 1 (
+    echo "ERROR: config codegen failed"
+    exit /b 1
+)
+
 mkdir %build_dir%
 cd %build_dir%