doxygen: fix missing titles in addgroup

src/lib/elementary/efl_ui_clock.h

@@ -1,5 +1,5 @@
 /**
- * @defgroup efl_ui_clock
+ * @defgroup efl_ui_clock EFL Ui Clock Widget
  * @ingroup Elementary
  *
  * @image html clock_inheritance_tree.png

src/lib/elementary/elm_code_line.h

@@ -40,7 +40,7 @@ EAPI void elm_code_line_free(Elm_Code_Line *line);
 
 /**
  * @brief Line manipulation functions.
- * @defgroup Content
+ * @defgroup Content Elementary Code Line
  * @{
  *
  * Functions for changing the content of lines in an Elm_Code_File
@@ -87,7 +87,7 @@ EAPI void elm_code_line_merge_down(Elm_Code_Line *line);
  * @}
  *
  * @brief Line markup functions.
- * @defgroup Highlighting
+ * @defgroup Highlighting Elementary Code Highlighting
  *
  * @{
  *

src/lib/elput/Elput.h

@@ -183,7 +183,7 @@ EAPI int elput_init(void);
 EAPI int elput_shutdown(void);
 
 /**
- * @defgroup Elput_Manager_Group
+ * @defgroup Elput_Manager_Group Elput Manager
  *
  * Functions that deal with connecting, disconnecting, opening, closing
  * of input devices.

src/lib/evas/Evas_Legacy.h

@@ -3531,7 +3531,7 @@ EAPI Evas_Object *evas_object_rectangle_add(Evas *e) EINA_WARN_UNUSED_RESULT EIN
  */
 
 /**
- * @defgroup Evas_Object_Vg
+ * @defgroup Evas_Object_Vg Vector Graphics Object
  * @ingroup Evas
  *
  * Evas_Object_Vg is the scene graph for managing vector graphics  objects.