* Filter directories / only files / both directories and files
* Case sensitive / insensitive option
* Close filter panel without losing the filtered list in the file panel with TAB key or clicking outside, ESCAPE cancels filter
* Button to toggle between quick search/filter keeping the typed text
* Allow writing text while ALT or CTRL+ALT key is pressed in quick search
* Allow changing settings for individual tabs without affecting the rest; parameters added to cm_QuickFilter/cm_QuickSearch for changing those settings via hotkeys:
'togglefilter': changes between quick search and quick filter modes
'matchbeginning': sets/unsets match beginning option
'matchending': same as above but for match ending
'casesensitivity': toggles case sensitivity in search/filter
'filesdirectories': changes mode between only files, only directories and both files and directories
