Initial commit: Piglet - Animated figlet wrapper

Add complete Rust implementation with:
- 20+ motion effects (fade, slide, scale, typewriter, wave, bounce, etc.)
- 18+ easing functions (linear, quad, cubic, elastic, back, bounce)
- Color support (CSS4 colors, hex codes, gradients)
- Figlet integration with custom fonts and options
- Cross-platform support (Linux, macOS, Windows)
- Comprehensive CI/CD workflows
- Full test suite with integration tests
- Documentation (README.md, CLAUDE.md)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

.github/workflows/coverage.yml

@@ -0,0 +1,36 @@
+name: Code Coverage
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  coverage:
+    name: Code Coverage
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Install Rust toolchain
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          components: llvm-tools-preview
+
+      - name: Install figlet
+        run: sudo apt-get update && sudo apt-get install -y figlet
+
+      - name: Install cargo-llvm-cov
+        uses: taiki-e/install-action@cargo-llvm-cov
+
+      - name: Generate coverage
+        run: cargo llvm-cov --all-features --workspace --lcov --output-path lcov.info
+
+      - name: Upload to codecov.io
+        uses: codecov/codecov-action@v3
+        with:
+          files: lcov.info
+          fail_ci_if_error: true
+          token: ${{ secrets.CODECOV_TOKEN }}