Edit resS instead of image data for Texture2D

[suphamster]

So In UABEA it's still impossible to write textures in ResS, can it be added?

[nesrak1]

I don't plan on adding support for anything like this any time soon because of the reasons discussed in that issue. Editing the resS in the middle/beginning might cause a resize which means you have to find every texture and mesh and whatever asset types come in the future and update their size. It's a lot of work that could break things if not properly done.