Simulate readline callback for sim mode, fixes #46
Let users know if debug mode is on a little more clearly
Change lower servo point alias from "paint" to "draw"
Prep work for expanding capabilities on #47
Break out hard-coded serial commands into controller/bot config
Also adds support for absolute movements, and custom controller ACK
Prep work for expanding capabilities on #47
Add "wait" tool property to allow for manual tool changes!
Assumes TWO different tools, a manualswap, and manualresume, expects client to alert user and send the resume toolchange to resume work
Prep work for expanding capabilities on #47
Initial WIP TinyCNC "driver" bot config for #47