[BZ#442195] Add filename filter for text filters

Submitted by Robert Ancell

Assigned to Stephen Kennedy

Description

Please add the ability to enable text filters based on filename. Some of the default filters only apply to certain file types and it is easy to accidentally leave one on when viewing other file types.

For example the C++ comment filter should only be used on files matching the pattern *.{c,C,cpp} etc.

Suggest adding a file glob column to the text filter pane on the preferences dialog.