Update CI to use github Actions

.github/workflows/maven.yml

@@ -0,0 +1,38 @@
+name: Java CI
+
+on: [push]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up JDK 1.8
+      uses: actions/setup-java@v1
+      with:
+        java-version: 1.8
+    - name: Set up Python3.6
+      uses: actions/setup-python@v1
+      with:
+        python-version: 3.6
+    - name: Setup sc-docker
+      run: |
+        git clone https://github.com/Bytekeeper/sc-docker.git
+        cp it/sc-docker-support/*.dockerfile sc-docker/docker/dockerfiles
+        pushd sc-docker
+        pip3 install wheel
+        python3 setup.py bdist_wheel
+        pip3 install dist/scbw*.whl
+        cd docker
+        ./build_images.sh
+        popd
+        scbw.play --install
+    - name: Install jbwapi
+      run: sh mvnw clean install
+    - name: Run test bots 
+      run: |
+        sh mvnw -f it/bots/pom.xml package
+        for bot in $(ls -d it/bots/*/); do BOTNAME=$(basename $bot); echo "Setting up $BOTNAME"; mkdir -p "$HOME/.scbw/bots/$BOTNAME/AI" "$HOME/.scbw/bots/$BOTNAME/read" "$HOME/.scbw/bots/$BOTNAME/write"; cp it/sc-docker-support/BWAPI.dll "$HOME/.scbw/bots/$BOTNAME"; cp "$bot/target/"*-with-dependencies.jar "$HOME/.scbw/bots/$BOTNAME/AI"; cp "$bot/bot.json" "$HOME/.scbw/bots/$BOTNAME"; done
+        scbw.play --headless --bots jbwapibot SittingDuck --timeout 180 --docker_image starcraft:game 2>&1 | grep 'Winner is BotPlayer:jbwapibot:T' || (cat $HOME/.scbw/games/*/logs_0/* && false)