Added neubind, a system meant to replace TLbind. Its primary feature is that it allows for profiles to pool from multiple input devices per-key. It also makes it easier to make keycombos into their own signals.

Added neuControlTable, which is meant to replace / duplicate the control table being used by TLbind.
Changed the require timing of middleclass for the purpose of neubind, which uses it for now.
Added some dummy enums into variables for use with a new error handler.