Mass Effect Legendary Edition: Add Luma mod

[jhi721]

Luma addon for the Mass Effect Legendary Edition trilogy

• Native HDR: replaces AutoHDR with native HDR presentation
• AA: replaces FXAA with SMAA + optional RCAS sharpen
• HDR bloom: replaces the game's clamped bloom with a wider pyramidal HDR bloom
• AO: replaces the native HBAO+ with XeGTAO
• Forces 16x anisotropic filtering
• AutoHDR for the videos
• Grade controls (exposure, contrast, saturation, highlight desaturation, bloom, vignette, film grain, dithering) + Hide Gameplay UI toggle