Initial Arduino UNO Q template with LED Matrix functionality

- Complete MPU-MCU communication setup
- LED Matrix text display with configurable parameters
- Configuration management with personal data protection
- Git template with .gitignore for sensitive data
- Automated build and deployment scripts
- SSH key management and service scripts

.gitignore

@@ -0,0 +1,67 @@
+# Personal configuration files
+config.json
+config.local.json
+.env
+.secrets
+
+# SSH keys and certificates
+*.pem
+*.key
+*.crt
+*.p12
+id_rsa*
+id_ed25519*
+arduino_unoq_key*
+
+# Build artifacts
+build/
+*.bin
+*.hex
+*.elf
+*.map
+*.tmp
+
+# Python cache
+__pycache__/
+*.pyc
+*.pyo
+*.pyd
+.Python
+*.so
+
+# Virtual environments
+venv/
+env/
+.venv/
+
+# IDE files
+.vscode/settings.json
+.idea/
+*.swp
+*.swo
+*~
+
+# OS files
+.DS_Store
+Thumbs.db
+*.tmp
+
+# Logs
+*.log
+logs/
+
+# Temporary files
+tmp/
+temp/
+*.bak
+
+# Node modules (if using npm)
+node_modules/
+
+# Arduino IDE files
+*.hardware
+*.tools
+
+# Zephyr build files
+zephyr/
+build/