[Demo][DNM] Add OpenLab CI configuration for ARM64 build

.zuul.yaml

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+- project:
+    name: theopenlab/storm
+    check:
+      jobs:
+        - storm-build-arm64
+
+- job:
+    name: storm-build-arm64
+    parent: init-test
+    description: |
+      The storm build in openlab cluster.
+    run: .zuul/playbooks/storm-build/run.yaml
+    nodeset: ubuntu-xenial-arm64

.zuul/playbooks/storm-build/run.yaml

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+- hosts: all
+  become: yes
+  tasks:
+    - name: Build storm
+      shell:
+        cmd: |
+          wget https://www.apache.org/dist/maven/maven-3/3.5.4/binaries/apache-maven-3.5.4-bin.tar.gz
+          tar -xzf apache-maven-3.5.4-bin.tar.gz
+          export PATH=$PWD/apache-maven-3.5.4/bin:$PATH
+
+          command curl -sSL https://rvm.io/mpapis.asc | sudo gpg --import -
+          command curl -sSL https://rvm.io/pkuczynski.asc | sudo gpg --import -
+          curl -L https://get.rvm.io | bash -s stable --autolibs=enabled && source ~/.profile
+
+          source /etc/profile.d/rvm.sh
+
+          wget -qO- https://raw.githubusercontent.com/creationix/nvm/v0.26.1/install.sh | bash && source ~/.bashrc
+          rvm use 2.4.2 --install
+          nvm install 8.9.3
+
+          pip install mock
+          pip3 install mock
+
+          mvn clean install -DskipTests | tee $LOGS_PATH/build.txt
+        chdir: '{{ zuul.project.src_dir }}'
+        executable: /bin/bash
+      environment: '{{ global_env }}'