enhancement: material editor - organize texture file list

[ghramsey]

When viewing textures in the list it's difficult to find items. In lieu of a search function can the list just be organized
like the composite tree list ? It would at make it easier.

Additionally, if I click the global button it changes the texture selected and auto saves it then one must re-find the original
texture which is why the request above. But how about a confirmation or at least preventing accidentally changing the
texture default while scrolling the list?

IDK if that is considered a bug. I know the materials editor it a work in progress.