chore: add github actions

Author: jobo322

.github/workflows/nodejs.yml

@@ -0,0 +1,36 @@
+name: Node.js CI
+
+on:
+  push:
+    branches: master
+  pull_request:
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v2-beta
+        with:
+          node-version: 14.x
+      - name: Install dependencies
+        run: npm install
+      - name: Run ESLint
+        run: npm run eslint
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [10.x, 12.x, 14.x]
+    steps:
+      - uses: actions/checkout@v2
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v2-beta
+        with:
+          node-version: ${{ matrix.node-version }}
+      - name: Install dependencies
+        run: npm install
+      - name: Run tests
+        run: npm run test-coverage
+      - name: Send coverage report to Codecov
+        uses: codecov/codecov-action@v1

.github/workflows/release.yml

@@ -0,0 +1,32 @@
+name: Release
+
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  release-please:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: GoogleCloudPlatform/release-please-action@v2.5.3
+        id: release
+        with:
+          token: ${{ secrets.BOT_TOKEN }}
+          release-type: node
+          package-name: ml-matrix
+          bump-minor-pre-major: Yes
+      - uses: actions/checkout@v2
+        # These if statements ensure that a publication only occurs when a new release is created
+        if: ${{ steps.release.outputs.release_created }}
+      - uses: actions/setup-node@v2-beta
+        with:
+          node-version: 14
+          registry-url: 'https://registry.npmjs.org'
+        if: ${{ steps.release.outputs.release_created }}
+      - run: npm install
+        if: ${{ steps.release.outputs.release_created }}
+      - run: npm publish
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_BOT_TOKEN }}
+        if: ${{ steps.release.outputs.release_created }}

.github/workflows/typedoc.yml

@@ -0,0 +1,22 @@
+name: Deploy TypeDoc on GitHub pages
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Build documentation
+        uses: zakodium/typedoc-action@v1
+        with:
+          entry: 'matrix.d.ts'
+      - name: Deploy to GitHub pages
+        uses: JamesIves/github-pages-deploy-action@releases/v3
+        with:
+          GITHUB_TOKEN: ${{ secrets.BOT_TOKEN }}
+          BRANCH: gh-pages
+          FOLDER: docs
+          CLEAN: true