User/Breather/Flasher modes available

Add 'Bluetooth-LED-Controller/' from commit 'a9781a78ed4d72cea0adf8e8…

…627fc7ac37917caa'

git-subtree-dir: Bluetooth-LED-Controller
git-subtree-mainline: 2fe1ce813fa1c2ea556dbb43d5b8af1b04e6efd4
git-subtree-split: a9781a78ed4d72cea0adf8e8627fc7ac37917caa