Maint/add git action pipelines

.eca_a9.rosinstall

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+- git:
+    uri: https://github.com/uuvsimulator/uuv_simulator.git
+    local-name: uuv_simulator

.github/issue-branch.yml

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+branches:
+  - label: enhancement
+    prefix: feature/
+  - label: bug
+    prefix: bugfix/
+  - label: documentation
+    prefix: docs/
+  - label: maintenance
+    prefix: maint/

.github/workflows/create_issue_branch.yml

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+on:
+  issues:
+      types: [assigned]
+  issue_comment:
+      types: [created]
+
+jobs:
+  create_issue_branch_job:
+    runs-on: ubuntu-latest
+    steps:
+    - name: create issue branch
+      uses: robvanderleek/create-issue-branch@master
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/industrial_ci_action.yml

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+# This config uses industrial_ci (https://github.com/ros-industrial/industrial_ci.git).
+# For troubleshooting, see readme (https://github.com/ros-industrial/industrial_ci/blob/master/README.rst)
+
+name: build
+
+on: [push, pull_request] # on all pushes and PRs
+
+jobs:
+  industrial_ci:
+    strategy:
+      matrix:
+        env:
+          - {ROS_DISTRO: kinetic, ROS_REPO: main, CATKIN_LINT: true}
+          - {ROS_DISTRO: kinetic, ROS_REPO: main, PRERELEASE: true}
+          - {ROS_DISTRO: kinetic, ROS_REPO: main, UPSTREAM_WORKSPACE: .eca_a9.rosinstall}
+          - {ROS_DISTRO: melodic, ROS_REPO: main, CATKIN_LINT: true}
+          - {ROS_DISTRO: melodic, ROS_REPO: main, PRERELEASE: true}
+          - {ROS_DISTRO: melodic, ROS_REPO: main, UPSTREAM_WORKSPACE: .eca_a9.rosinstall}
+    env:
+      CCACHE_DIR: /github/home/.ccache # Directory for ccache (and how we enable ccache in industrial_ci)
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      # This step will fetch/store the directory used by ccache before/after the ci run
+      - uses: actions/cache@v2
+        with:
+          path: ${{ env.CCACHE_DIR }}
+          key: ccache-${{ matrix.env.ROS_DISTRO }}-${{ matrix.env.ROS_REPO }}
+      # Run industrial_ci
+      - uses: 'ros-industrial/industrial_ci@master'
+        env: ${{ matrix.env }}