wxwidgets.cfg: Added support for wxGrid::GetId(). (#7187)

Author: orbitcowboy

cfg/wxwidgets.cfg

@@ -16998,8 +16998,9 @@ wxItemKind kind = wxITEM_NORMAL) -->
   </function>
   <!-- int wxToolbookEvent::GetId( void ) const -->
   <!-- int wxEvent::GetId( void ) const -->
+  <!-- int wxGrid::GetId( void ) const -->
   <!-- int wxCommandEvent::GetId( void ) const -->
-  <function name="wxEvent::GetId,wxCommandEvent::GetId,wxToolbookEvent::GetId">
+  <function name="wxEvent::GetId,wxCommandEvent::GetId,wxToolbookEvent::GetId,wxGrid::GetId">
       <noreturn>false</noreturn>
       <leak-ignore/>
       <returnValue type="int"/>