Custom Tachometers and Boost Gauges 3.1.0

Fixes a few small bugs:

• Fusion Tachometer - the redline shown will not include the maximum RPM of the engine
• Fusion Tachometer - gear size is reduced for gears longer than 1 digit
• Forced Induction Apps - each major point is now rounded to 1 decimal place, fixing some issues, particularly with the Bar unit
• Fusion Forced Induction - font size automatically changes to fit within it's boundaries