[Code/GUI] Working on bootloader improvements. Merging/sharing some code with main app.

[GUI/Code] Bootloader updates are working using the GUI.

[GUI] Updated QtUsb

[GUI/Code] Working on bootloader integration.

[GUI] Working on FW update wizard [Board] Updated URL [CODE] Small workarounds on the bootloader until I get the hardware fixed.

[Board Rev A] Tweaking capacitor values

[Board Rev A] Tweaking resistor values

[GUI] Fixed Undo for spinboxes

[Board Rev B] Spacing some 0603s

[GUI] Working on Undo for spinboxes.