Add controls.json to hold the widget information

[royfalk]

for the base computer widgets instead of hard coding it in the code. See https://github.com/vegastrike/Vega-Strike-Engine-Source/pull/825

Code Changes:

• [No] Have the PR Validation Tests been run? See https://github.com/vegastrike/Vega-Strike-Engine-Source/wiki/Pull-Request-Validation

I've made screenshots of the base computer screens and compared them to the new ones. I've also play tested this functionality specifically.

Issues:

• None

[BenjamenMeyer]

we'll need to add this to PWCU and VSU:BP as well.