Add CI Workflows

.github/workflows/activation.yaml

@@ -0,0 +1,18 @@
+name: Acquire activation file
+on:
+  workflow_dispatch: {}
+jobs:
+  activation:
+    name: Request manual activation file
+    runs-on: ubuntu-latest
+    steps:
+      # Request manual activation file
+      - name: Request manual activation file
+        id: getManualLicenseFile
+        uses: game-ci/unity-request-activation-file@v2
+      # Upload artifact (Unity_v20XX.X.XXXX.alf)
+      - name: Expose as artifact
+        uses: actions/upload-artifact@v2
+        with:
+          name: ${{ steps.getManualLicenseFile.outputs.filePath }}
+          path: ${{ steps.getManualLicenseFile.outputs.filePath }}

.github/workflows/main.yaml

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+name: Actions
+
+on: [pull_request]
+
+jobs:
+  build:
+    name: Build project
+    runs-on: ubuntu-latest
+    steps:
+      # Checkout (without LFS)
+      - name: Checkout repository
+        uses: actions/checkout@v2
+
+      # Git LFS
+      - name: Create LFS file list
+        run: git lfs ls-files -l | cut -d' ' -f1 | sort > .lfs-assets-id
+
+      - name: Restore LFS cache
+        uses: actions/cache@v2
+        id: lfs-cache
+        with:
+          path: .git/lfs
+          key: ${{ runner.os }}-lfs-${{ hashFiles('.lfs-assets-id') }}
+
+      - name: Git LFS Pull
+        run: |
+          git lfs pull
+          git add .
+          git reset --hard
+
+      # Cache
+      - uses: actions/cache@v2
+        with:
+          path: Library
+          key: Library-${{ hashFiles('Assets/**', 'Packages/**', 'ProjectSettings/**') }}
+          restore-keys: |
+            Library-
+
+      # Build
+      - name: Build project
+        uses: game-ci/unity-builder@v2
+        env:
+          UNITY_LICENSE: ${{ secrets.UNITY_LICENSE }}
+          UNITY_EMAIL: ${{ secrets.UNITY_EMAIL }}
+          UNITY_PASSWORD: ${{ secrets.UNITY_PASSWORD }}
+        with:
+          targetPlatform: WebGL
+
+      # Output
+      - uses: actions/upload-artifact@v2
+        with:
+          name: Build
+          path: build
+