Add Github workflows for CI (#74)

* Create build-and-test.yml

* Create publish.yml

* Update publish.yml

* Update publish.yml

* Update build-and-test.yml

* Update build-and-test.yml

* Update build-and-test.yml

.github/workflows/build-and-test.yml

@@ -0,0 +1,24 @@
+name: "Build and Test"
+
+on: 
+  push:
+    paths:
+      - 'src/*'
+      - 'docs/*'
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v1
+    - name: Install packages
+      run: npm ci
+    - name: Build the project
+      run: npm run build
+    - name: Run linter
+      uses: mooyoul/tslint-actions@v1.1.1
+      with:
+        token: ${{ secrets.GITHUB_TOKEN }}
+        pattern: '*.ts'

.github/workflows/publish.yml

@@ -0,0 +1,23 @@
+name: Publish to NPM
+
+on:
+  release: 
+    types: [published]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v1
+    - name: Install packages
+      run: npm ci
+    - name: Build the project
+      run: npm run build
+    - name: Publish to NPM
+      uses: primer/publish@master
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        NPM_AUTH_TOKEN: ${{ secrets.NPM_AUTH_TOKEN }}
+        args: '--dir=lib'