scene.org compo files matching query enhancements

[glennlunder]

https://demozoo.org/sceneorg/compofiles/ - for this admin query, it would be super if we could;

a) Filter out all the ones that are already fully matched - shown as non-bold in current list - either with a toggle or just plain hide them b) Have an exclusion button for those cases where there is nothing to match to. Example: Music competitions where a sample pack is in the directory, or similar situations for paintover competitions.