Add transparency flag support to drawFill

works in both software and opengl. test script included.

dft.lua

credit to Jimitia's new hud drawing funcs MR which I got a small bit of code for the software support from. software is very confusing

changed the description

added Enhancement Lua OpenGL renderer Rendering Software renderer labels

added 1014 commits

• 754a11f7...a68440c4 - 1013 commits from branch STJr:next
• f3ad50e6 - Merge branch SRB2:next into drawfill-transparency

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added 1 commit

• 66138861 - Update v_video.c

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added 347 commits

• 66138861...106a98ce - 346 commits from branch STJr:next
• 48d06337 - Merge branch SRB2:next into drawfill-transparency

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merged

mentioned in commit 341159fd