Custom Online Asset Libraries (Suggestion)

[athyfr]

ISSUE:

I want to be able to use more asset libraries besides the two already supported ones. Ones I may want to use include iMeshh, BlenderKit, blendfile.com, etc.
Something to note is that some asset libraries may require login.

SOLUTION:

Add options for adding custom asset libraries.

Even if certain websites aren't supported for this, it would make this addon way more powerful.

[Bingo-Starr]

SOLUTION:
Add options for adding AND REMOVING custom asset libraries.

[MagnumVD]

I would also love to see more asset libraries, custom ones are probably not possible since all websites have a different format, but just more libraries in general would be awesome