ci(ci/cd): added GitHub Actions

.github/workflows/branches.yml

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+# This workflow will do a clean install of node dependencies, build the source code and run tests across different versions of node
+# For more information see: https://help.github.com/actions/language-and-framework-guides/using-nodejs-with-github-actions
+
+name: Branches
+
+on:
+  push:
+    branches-ignore:
+      - master
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version:
+          - 10.x
+          - 12.x
+          - 14.x
+          - 15.x
+    steps:
+    - uses: actions/checkout@v2
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
+    - run: yarn
+    - run: yarn build
+    - run: yarn test
+      env:
+        CI: true

.github/workflows/master.yml

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+# This workflow will do a clean install of node dependencies, build the source code and run tests across different versions of node
+# For more information see: https://help.github.com/actions/language-and-framework-guides/using-nodejs-with-github-actions
+
+name: Master
+
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version:
+          - 10.x
+          - 12.x
+          - 14.x
+          - 15.x
+    steps:
+    - uses: actions/checkout@v2
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
+    - run: yarn
+    - run: yarn build
+    - run: yarn test
+      env:
+        CI: true
+
+  release:
+    name: Release
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v1
+      - name: Setup Node.js
+        uses: actions/setup-node@v1
+        with:
+          node-version: 14
+      - run: yarn
+      - run: yarn build
+      - run: yarn test
+        env:
+          CI: true
+      - name: Coveralls
+        uses: coverallsapp/github-action@master
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}
+      - name: Release
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
+        run: npx semantic-release