v1.2 Release - Minification Tweaks + Velocity Module

[Tmktahu]

This PR requires in-game testing before I can merge it.

This PR does the following:

• Further optimizes the minification to give enough space for inverting the axes and displaying speed
• Creates Velocity module v1
• Adds documentation for new Velocity module
• Adds tweaked version of IPS for displaying speed on the same screen
• Adds a variable map text file to current release so I don't go crazy

[Tmktahu]

Ran into a testing problem. The velocity calculation code compares the previous coordinate vs the current coordinate, but over the script's refresh time, which is 0.2 seconds. Since coordinates are updated every 0.6 seconds, you end up with cycles that are comparing the same coordinates to each other, which results in a speed of 0.

[Tmktahu]

It seems I need to trade update time for stability. There are small moments of lag + update time offsets that cause the speed to jump around. I'm going to aim for a 0.4 second update time in exchange for a buffer of 3 vector magnitudes that will hopefully let me stabilize things

[Tmktahu]

turns out the buffer idea was a bad one. I instead went googling around for smoothing methods and settled on using exponential smoothing