Add a simple script to run the docker build

dockerbuild.sh

@@ -0,0 +1,47 @@
+function cleanup {
+    echo "Removing previous build artifacts"
+    rm -rf build
+    docker rm build-cont
+}
+
+function gc {
+    cleanup
+    docker rmi build-img
+    docker image prune
+}
+
+function build {
+    cleanup
+
+    echo "Building the firmware"
+    docker build -t build-img .
+
+    echo "Create container"
+    docker create --name build-cont build-img:latest
+
+    echo "Extract build artifacts"
+    docker cp build-cont:ODrive/Firmware/build .
+}
+
+function usage {
+    echo "usage: $0 build | cleanup | gc"
+    echo
+    echo "build   -- build in docker and extract the artifacts."
+    echo "cleanup -- remove build artifacts from previous build"
+    echo "gc      -- remove all build images and containers"
+}
+
+case $1 in
+    build)
+	build
+	;;
+    cleanup)
+	cleanup
+	;;
+    gc)
+	gc
+	;;
+    *)
+	usage
+	;;
+esac