Add code_complete_enabled code editor setting

editor/code_editor.h

@@ -157,6 +157,7 @@ class CodeTextEditor : public VBoxContainer {
 
 	Label *info = nullptr;
 	Timer *idle = nullptr;
+	bool code_complete_enabled = true;
 	Timer *code_complete_timer = nullptr;
 	int code_complete_timer_line = 0;