Feature Request: Sort by date created, date modified or size. Search function

[yewkay]

Thanks for this fantastic plugin. It would be great if we can sort the duplicated files by either size, or dates (created and modified) so that we can quickly sort through what to delete.

Another feature request could be a search/filter function, that would allow us to find if a part of a file name or filter out files we want to ignore. Eg: We have some standard files we put into every user's directories, it will keep popping up in the duplicate finder.

Thank you very much!

[cmigliorini]

see #61