Better Inclusion/Exclusion handling

[robweber]

From @Morphy99

"What would be useful is a file filter, being able to exclude/include certain files by wildcards?"

Expanding on this an example would be something like *.xml within an include directory. This would probably involve adding another layer to the Advanced Editor at the point where folder includes are added. The added feature would allow for the including/excluding of particular files with some type of matching. The default match would just be * and then customized from there.