[BUG/FEATURE] Let users adjusting the Render Scale setting by increments of 5 or 1 (instead of 10)

Brief description of the issue:

With certain combinations of TAA render scale and OXR super sampling, we can optimize the rendering cost per pixel when targeting a certain visual result. However the FS2020 setting “Render Scale” is constraining users to a 10 by 10 step size. This is limiting the user from adjusting the value to finer grained, and more efficient values, for one’s hardware, especially in VR.

I’d suggest you unleash the full potential of VR hardware in allowing stepping the value by 1 (or at least by 5 like OpenXR Developer Tool Scaling Factor setting)

Related:
EFIS Screens Problems and Solutions for higher legibility
Add support for mouse wheel to change the UI settings sliders

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