add: paste as vertical block if clipfile contain magic sequence add: vertical paste from file add: symbolic definition MAGIC_VERTICAL for "\1\1\1\1\n" magic sequence
All editor private API stuff is located now in edit/edit-impl.h. Public API is located in edit/edit.h. Added functions to read some fields of WEdit struct. Signed-off-by: Andrew Borodin <aborodin@vmail.ru>