Major GUI Changes

-Got rid of bulky graphs, now has places to show a print queue and live
output
-Vertical Progress bar on the side shows temperature of printer visually
-Added Label and spinner to change/display the setpoint
-Removed lots of useless code from old GUI
-Added methods to be called which handle starts, stops, pause, and
resume functionality for the printer.
-Misc. formatting adjustments
Added ToolTip to Print Display

ToolTip instructs user how to move around and work in the print display
window.
Loaded Files are listed in the Queue

Each file loaded is displayed in the List
Changed direct calls to getter calls

changed some direct calls to items (could cause some trouble if they
haven't been created for some reason) to call the getters instead.
Added blank Item to the JList

Just a placeholder until files get loaded.