rsx: Overlay improvements

[kd-11]

• Adds support for other primitive types other than triangle strips. This will come in handy very soon.
• Adds a video-out calibration pass for vulkan. This already existed on OpenGL and fixes some games that use video-out gamma correction to calibrate ingame brightness. In these games, the brightness settings usually have no effect on vulkan, but work on OpenGL.

[MarioSonic2987]

Fixes brightness/gamma setting in the following games:

Resident Evil 5 (Brightness values: Lowest, Medium and Highest)

Before:



After:

Resident Evil 6 (Brightness values: 0, 20 and 40)

Before:



After:

Saints Row: The Third (Gamma values: 0, 50 and 100)

Before:



After:

Saints Row IV (Gamma values: 0, 50 and 100)

Before:

After:

Saints Row: Gat out of Hell (Gamma values: 0, 50 and 100)

Screenshots and GIFs are made by MsDarkLow.
Before:

GIF version:

After:

GIF version:

Notes:

• Saints Row games had the same issue as Yakuza titles. Brightness setting already worked before, but gamma setting was broken.

[MsDarkLow]

Fixes Gamma setting for Yakuza 5, Ishin, 0 and Kiwami.
Brightness setting already previously worked.

Yakuza 0 Example:

Master (Before)

PR (After)