Added prettier and some workflows for github actions

.github/workflows/nightly.yml

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+name: Daily Build
+
+on:
+  schedule:
+    - cron: '0 6 * * *'
+
+permissions:
+  contents: read
+
+jobs:
+  nightly:
+    if: github.repository == 'primefaces/primeng' && github.ref == 'refs/heads/master'
+    runs-on: ubuntu-latest
+    name: Node ${{ matrix.node-version }}
+
+    strategy:
+      matrix:
+        node-version: [16.x, 18.x]
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v2
+      with:
+        node-version: ${{ matrix.node-version }}
+        cache: 'npm'
+
+    - name: Build
+      run: |
+        npm install
+        npm run build:lib

.github/workflows/node.js.yml

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+name: NodeJS CI
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+permissions:
+  contents: read
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [16.x, 18.x]
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v2
+      with:
+        node-version: ${{ matrix.node-version }}
+        cache: 'npm'
+
+    - name: Build
+      run: |
+        npm install
+
+    - name: Lint Check
+      if: ${{ success() }}
+      run: |
+        npm run lint
+
+    - name: Code Format
+      if: ${{ success() }}
+      run: |
+        npm run format:check
+
+    - name: Security Check
+      if: ${{ success() }}
+      run: |
+        npm run security:check
+
+    - name: Test
+      if: ${{ success() }}
+      run: |
+        npm run test

.prettierignore

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+# Ignore artifacts:
+build
+coverage
+dist
+out
+public
+styles
+node_modules
+.vscode
+.angular

.prettierrc.json

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+{
+    "useTabs": false,
+    "tabWidth": 4,
+    "trailingComma": "none",
+    "semi": true,
+    "singleQuote": true,
+    "vueIndentScriptAndStyle": false,
+    "printWidth": 250,
+    "bracketSameLine": false
+}

.vscode/extensions.json

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+{
+    "recommendations": [
+        "dbaeumer.vscode-eslint",
+        "esbenp.prettier-vscode"
+    ]
+}