Add wxStyledTextCtrl::AutoCompGetCurrentText()

Added support for SCI_AUTOCGETCURRENTTEXT API.

Closes #16263.

interface/wx/stc/stc.h

@@ -5757,6 +5757,13 @@ public:
     */
     int AutoCompGetCurrent() const;
 
+    /**
+        Get currently selected item text in the auto-completion list
+
+        @since 3.1.1
+    */
+    wxString AutoCompGetCurrentText() const;
+
     /**
         Set auto-completion case insensitive behaviour to either prefer case-sensitive matches or have no preference.