Spruce UI config and Float sliders

[spiralhalo]

Aside from the obvious library changes, a few merits of this branch:

• General flexibility in the UI widgets, equivalent to vanilla with a lot of the boilerplate out of the way
• Wider sliders allow for high precision float sliders not previously allowed
  • Consequently, added slider "step" property to pipeline float options (default is 0.01)
  • [Future] Will need to add "input" boolean property for manual float inputs, or make hybrid input/slider
• Some missing "require restart" flags were added. Reload and Timekeeper Reload flags were simplified
• Minor plus of semi transparent config window, primarily to see pipeline changes take effect
• Aesthetics

Lastly, this branch can be considered complete. Only thing missing is end user feedback and approval.