feat: Control widget for string fields

Change-Id: Ibfe5f3cfe3a90dc8c727d9a2fd6ac18266fe6171
diff --git a/test/test_config_ui.py b/test/test_config_ui.py
index 7b23027..78d83a0 100644
--- a/test/test_config_ui.py
+++ b/test/test_config_ui.py
@@ -17,6 +17,7 @@
 
 class ExampleSubFrame(ConfigControlFrame):
     wdg_id: ttk.Spinbox
+    wdg_title: ttk.Entry
 
 
 @ui_create
@@ -30,6 +31,9 @@
         ttk.Label(frm, text="Id:").grid(row=0, column=0)
         frm.wdg_id = self.ui_create_id(frm)
         frm.wdg_id.grid(row=0, column=1)
+        ttk.Label(frm, text="Title:").grid(row=1, column=0)
+        frm.wdg_title = self.ui_create_title(frm)
+        frm.wdg_title.grid(row=1, column=1)
         return frm