Show percentage match between images

[RedSackles]

Description
When using Media DC it would be really useful to be able to see the percentage they matched.
This could be used to help determine that sweet spot where you can trust it to automatically pick which file to keep or remove.

Example
Currently you set the percentage match in the config prior to running the job.
But when going thur the images you don't know if they where a 99.9% match or a 90% match.
If you see a lot of higher percentages you could adjust the config in order to weed out the easy matches first (or potentially even automate that)