add time expired sound update README
* feat: add installer script, revise methodology * feat: update installer.sh script to fix issues * fix: re-name service to .template * fix: line endings, script update, guestbook output_file mod * fix: lambda revision * fix: add NC/NO logic for hook_type
* refactor: functional * refactor: ♻️ move alsa_hw_mapping to config param --------- Co-authored-by: Nick Pourazima <nick.pourazima@gmail.com>