External programs plugger

see issue 1323

rtdata/languages/default

@@ -78,6 +78,8 @@ EXPORT_MAXWIDTH;Maximum Width:
 EXPORT_PUTTOQUEUEFAST;  Put to Queue for Fast Export
 EXPORT_RAW_DMETHOD;Demosaic Method
 EXPORT_RESIZEMETHOD;Resize Method
+EXTPROGTARGET_1;raw
+EXTPROGTARGET_2;queue-processed
 FILEBROWSER_ADDDELTEMPLATE;Add/Del templates...
 FILEBROWSER_APPLYPROFILE;Apply profile
 FILEBROWSER_APPLYPROFILE_PARTIAL;Apply profile (partial)
@@ -104,10 +106,12 @@ FILEBROWSER_EXIFFILTERAPPLY;Apply
 FILEBROWSER_EXIFFILTERLABEL;Exif Filter
 FILEBROWSER_EXIFFILTERSETTINGSHINT;Change settings of the Exif Filter
 FILEBROWSER_EXIFFILTERSETTINGS;Setup
+FILEBROWSER_EXTPROGMENU;Open with
 FILEBROWSER_FLATFIELD;Flat Field
 FILEBROWSER_MOVETODARKFDIR;Move to dark frames directory
 FILEBROWSER_MOVETOFLATFIELDDIR;Move to flat fields directory
 FILEBROWSER_NEW_NAME;New name:
+FILEBROWSER_OPENDEFAULTVIEWER;Windows Default Viewer (queue-processed) 
 FILEBROWSER_PARTIALPASTEPROFILE;Partial paste
 FILEBROWSER_PASTEPROFILE;Paste profile
 FILEBROWSER_POPUPCANCELJOB;Cancel job
@@ -474,6 +478,7 @@ MAIN_MSG_EMPTYFILENAME;Filename unspecified!
 MAIN_MSG_ERRORDURINGIMAGESAVING;Error during image saving
 MAIN_MSG_EXITJOBSINQUEUEINFO;Unprocessed images in the queue will be lost on exit.
 MAIN_MSG_EXITJOBSINQUEUEQUEST;Are you sure you want to exit? There are unprocessed images waiting in the queue.
+MAIN_MSG_IMAGEUNPROCESSED;This command requires all selected images to be queue process first.
 MAIN_MSG_JOBSINQUEUE;job(s) in the queue
 MAIN_MSG_NAVIGATOR;Navigator
 MAIN_MSG_PLACES;Places
@@ -673,6 +678,7 @@ PREFERENCES_INTENT_SATURATION;Saturation
 PREFERENCES_INTERNALTHUMBIFUNTOUCHED;Show raw internal thumbnail if unedited
 PREFERENCES_LANGAUTODETECT;Use OS language setting
 PREFERENCES_LIVETHUMBNAILS;Live Thumbnails (slower)
+PREFERENCES_MENUGROUPEXTPROGS;Group "Open with"
 PREFERENCES_MENUGROUPFILEOPERATIONS;Group File Operations
 PREFERENCES_MENUGROUPLABEL;Group Labeling
 PREFERENCES_MENUGROUPPROFILEOPERATIONS;Group Profile Operations