Added implementations for SCI_GETTARGETSTART and SCI_GETTARGETEND.
Added implementations for SCI_GETTARGETSTART and SCI_GETTARGETEND.

R1dO/scintilla_clone,R1dO/scintilla_clone,R1dO/scintilla_clone,R1dO/scintilla_clone,R1dO/scintilla_clone,R1dO/scintilla_clone,R1dO/scintilla_clone,R1dO/scintilla_clone