bug#41879: 28.0.50; [Patch]: Add project-switch-to-buffer in project.el

[Andrii Kolomoiets]

Hi Theodor,

> However, attached is a patch for project-switch-to-buffer, where only
> file-bound buffers are included. I believe the function should be kind
> of self explanatory.

Can you please tell why only file-bound buffers are included?  I have
some buffers with inferior python process in each project, would be nice
to switch to them with project-switch-to-buffer.

Also consider to provide default value like:

    (buffer-name (other-buffer (current-buffer)))

This way one can switch to recent project buffer with just RET, same way
as switch-to-buffer.

Thanks for your work!