Add Github CI script

Author: me-no-dev

.github/workflows/main.yml

@@ -0,0 +1,22 @@
+name: ESP32 Arduino Libs CI
+
+on:
+  push:
+    branches:
+    - master
+    - release/*
+  pull_request:
+
+jobs:
+
+  build-libs:
+    name: Build Arduino Libs
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v1
+    - name: Install dependencies
+      run: sudo apt-get install git wget curl libssl-dev libncurses-dev flex bison gperf python python-pip python-setuptools python-serial python-click python-cryptography python-future python-pyparsing python-pyelftools cmake ninja-build ccache
+    - name: Build Arduino Libs
+      env:
+        TRAVIS_BUILD_DIR: ${{ github.workspace }}
+      run: bash $TRAVIS_BUILD_DIR/build.sh