Instead of attempting to keep all the Fit service functionality, move these into specific "Fitting Commands" that are designed to define a unit of work and it's undo. Then, we will have "GUI Commands" which are defined as actions taken by the user themselves - these will usually use one or more "Fitting Commands".
- Added logging and replaced Timer class with more useful one
- Move projected fit loop out of runtimes
- Eliminate recursions from Fit.clear()
- Clean up overall fit calc logic
Also decided to have two separate functions that return the mode items as Items or Modes. Returning them as Items makes it easier to check if provided modeID from user database is valid (since we cannot easily map the modeID to create a Mode), returning as Modes allows us to easily use them for setters. There's probably a better way to do this, but w/e
