Optional integration: vscode-diff.nvim

[tienlonghungson]

Is your feature request related to a problem? Please describe.
vscode-diff.nvim is a new plugin for viewing diff. It is similar to diffview. Some users like it better.

Describe the solution you'd like
Add option to use vscode-diff.nvim instead of diffview.

[DanRioDev]

PLEASE!!!!1

[scruffydan]

Adding my vote for this, though I don't know how hard it would be to do and I really don't have the skills to implement this myself.

[uroybd]

The plugin, now renamed to 'codediff', is actually pretty good. Please consider integrating it.

[CKolkey]

#1883