Differentiation of Image, Texture and Sprite

[kurtkuehnert]

Objective

• Improve the differentiation between an image (data + metadata in RAM), texture (data in VRAM) and sprite (metadata, how to render a 2D image).

Solution

• renamed the texture module to image
• moved the texture cache to the render resources where textures are defined
• renamed lots of variables and types to better reflect what they actually are

[alice-i-cecile]

Nice set of changes! Good TODO comments; and I think this set of names is much clearer.

[alice-i-cecile]

@ku95 what would you like to do with this PR? It's likely to be easier to recreate from scratch at this point.

[kurtkuehnert]

@ku95 what would you like to do with this PR? It's likely to be easier to recreate from scratch at this point.

Yeah that is right. I will probably just close this now. I still think these changes are good for consistencies sake, but I do not have the time currently to update this PR. I think the entire image/texture module should be cleaned up in general.
I have made a PR #4124 that adds support for all wgpu texture formats to the Image struct. There are still some paper cuts in this part of the code base.
If anybody is interested they can pick up this effort.