Update L-Book project

1. Update README
2. Lint the code on a modern way
3. Add docker image
4. Add GitHub actions

.clang-format

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+---
+Language:        Cpp
+BasedOnStyle:  Google
+...

.dockerignore

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+.github
+.idea
+.clang-format
+.eslintignore
+.gitignore
+CPPLINT.cfg
+LICENSE
+README.md
+report.pdf

.eslintignore

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+Translation/*.ts

.github/linters/.jscpd.json

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+{
+  "threshold": 10,
+  "absolute": true
+}

.github/workflows/docker-build.yml

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+name: CI to GHCR
+
+on:
+  push:
+    branches:
+      - main
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  push:
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Check out the repo
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Log in to GitHub Container registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for Docker
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+          tags: |
+            # set latest tag for default branch
+            type=raw,value=latest,enable={{is_default_branch}}
+
+      - name: Build and push Docker images
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta. outputs.labels }}

.github/workflows/linter.yml

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+---
+name: Lint Code Base
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  build:
+    name: Lint Code Base
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Lint Code Base
+        uses: github/super-linter@v5
+        env:
+          VALIDATE_ALL_CODEBASE: false
+          DEFAULT_BRANCH: main
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.gitignore

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+.idea