Updated docs
Update behavior_tap_dance.c
Addressed comments by @okke-formsma and testing done by @dxmh relating to initial work in PR #811
Prettier'd tap-dance.md
Improved clarity
Added annotations. Reformatted counter increment. Removed LOG_DBG to reduce clutter in Serial Monitor.
Added Tests. Re-added relevant LOG_DBG for tests.
Removed non-tap-dance files edited by formatting docs.
