Added <gchar *et_format_track_number(const gint)> to centralize track
number formatting
Fixed some indentation
Added <gchar *et_format_track_number(const gint)> to centralize track
number formatting
Added some scanner masks (which are chosen arbitrarily :))
   %k - file index
   %m - total number of files in list
Added scan processor "fill field" which allows to fill a fill using
 the the tag data (utilizing the mask processing)