[NFC] Reorgranize CI tasks into their own files (#953)

Closes #950

.github/workflows/lint-format.yml

@@ -0,0 +1,88 @@
+name: Lint and Format
+
+on:
+  push:
+    branches: [ master ]
+    tags:
+      - 'v*'
+  pull_request:
+    branches: [ master ]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  wpiformat:
+    name: "wpiformat"
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/checkout@v3
+      - name: Fetch all history and metadata
+        run: |
+          git fetch --prune --unshallow
+          git checkout -b pr
+          git branch -f master origin/master
+      - name: Set up Python 3.8
+        uses: actions/setup-python@v4
+        with:
+          python-version: 3.8
+      - name: Install wpiformat
+        run: pip3 install wpiformat
+      - name: Run
+        run: wpiformat
+      - name: Check output
+        run: git --no-pager diff --exit-code HEAD
+      - name: Generate diff
+        run: git diff HEAD > wpiformat-fixes.patch
+        if: ${{ failure() }}
+      - uses: actions/upload-artifact@v3
+        with:
+          name: wpiformat fixes
+          path: wpiformat-fixes.patch
+        if: ${{ failure() }}
+  javaformat:
+    name: "Java Formatting"
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+      - uses: actions/setup-java@v3
+        with:
+          java-version: 17
+          distribution: temurin
+      - run: |
+          chmod +x gradlew
+          ./gradlew spotlessCheck
+
+  client-lint-format:
+    name: "PhotonClient Lint and Formatting"
+    defaults:
+      run:
+        working-directory: photon-client
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/checkout@v3
+      - name: Setup Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: 18
+      - name: Install Dependencies
+        run: npm ci
+      - name: Check Linting
+        run: npm run lint-ci
+      - name: Check Formatting
+        run: npm run format-ci
+  server-index:
+    name: "Check server index.html not changed"
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/checkout@v3
+      - name: Fetch all history and metadata
+        run: |
+          git fetch --prune --unshallow
+          git checkout -b pr
+          git branch -f master origin/master
+      - name: Check index.html not changed
+        run: git --no-pager diff --exit-code origin/master photon-server/src/main/resources/web/index.html