Globalizes local random functions from HUD into random library and experimentally moves HUD non-drawing functions to hud library.

Random lib:

	random.localfixed
	random.localbyte
	random.localkey
	random.localrange
	random.localsignedrandom
	random.localchance

(just take description from current HUD random functions)

However, I still think this should be in its own MR.

HUD lib:

	hud.patchExists
	hud.cachePatch
	hud.getSpritePatch
	hud.getSprite2Patch
	hud.getColormap
	hud.getStringColormap
	hud.width
	hud.height
	hud.scale
	hud.renderer

(Same thing here)

NOTE: regarding hud.scale, v.dupx and v.dupy were somewhat recently merged into pretty much same function, so this alias is more so to make it obvious what it is.

As another experiment. All HUDONLY guardrails of these functions were removed. While my testing was issue-less, it should warrant some testing. Perhaps some HUD functions should receive freeslot treatment, only if deemed necessary.

boldtest.lua