Change installation instructions from libcec-rpi to cec-utils which is the correct package name for Raspberry Pi OS (Raspbian).
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
- Add cec-control.sh with power, volume, and input commands
- Add README with installation and usage instructions
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>