* Add view show status for HUD gauges in scripting
Many FSO mods use scripted HUD gauges, but previously the scripted HUD gauges were always forced to be on for the player, unlike retail gauges that can be toggled in the HUD Config screen. This PR allows scripters to view the show status of a HUD gauge, which is very useful for adding a check in the script to only show the gauge if a certain gauge is active. This is similar behavior to the getColor function, which allowed scripters to get the HUD Config colors of a given default gauge.
Tested and works as expected.
* appease clang
wookieejedi
1fb1368882