doxygen: fix duplicated toc sections

src/lib/ecore/Ecore.h

@@ -6,7 +6,7 @@
 /**
  * @page ecore_main Ecore
  * @date 2000 (created)
- * @section toc Table of Contents
+ * @section ecore_toc Table of Contents
  * @li @ref ecore_main_intro
  * @li @ref ecore_main_compiling
  * @li @ref ecore_main_next_steps

src/lib/ector/Ector.h

@@ -41,7 +41,7 @@ extern "C" {
  *
  * @date 2014 (created)
  *
- * @section toc Table of Contents
+ * @section ector_toc Table of Contents
  *
  * @li @ref ector_main_intro
  * @li @ref ector_main_compiling

src/lib/edje/Edje.h

@@ -7,7 +7,7 @@ These routines are used for Edje.
 
 @date 2003 (created)
 
-@section toc Table of Contents
+@section edje_toc Table of Contents
 
 @li @ref edje_main_intro
 @li @ref edje_main_work

src/lib/eet/Eet.h

@@ -7,7 +7,7 @@
 
    @date 2000 (created)
 
-   @section toc Table of Contents
+   @section eet_toc Table of Contents
 
    @li @ref eet_main_intro
    @li @ref eet_main_compiling

src/lib/eeze/Eeze.h

@@ -6,7 +6,7 @@
 
    @date 2010 (created)
 
-   @section toc Table of Contents
+   @section eeze_toc Table of Contents
 
    @li @ref eeze_main_intro
    @li @ref eeze_main_compiling

src/lib/efreet/Efreet.h

@@ -11,7 +11,7 @@
 /**
  * @page efreet_main Efreet
  *
- * @section toc Table of Contents
+ * @section efreet_toc Table of Contents
  *
  * @li @ref efreet_main_intro
  * @li @ref efreet_main_compiling

src/lib/eina/Eina.h

@@ -48,7 +48,7 @@
  *
  * @date 2008 (created)
  *
- * @section toc Table of Contents
+ * @section eina_toc Table of Contents
  *
  * @li @ref eina_main_intro
  * @li @ref eina_main_compiling

src/lib/eio/Eio_Legacy.h

@@ -28,7 +28,7 @@ extern "C" {
  *
  * @date 2012 (created)
  *
- * @section toc Table of Contents
+ * @section eio_toc Table of Contents
  *
  * @li @ref eio_main_intro
  * @li @ref eio_main_compiling

src/lib/eldbus/Eldbus.h

@@ -3,7 +3,7 @@
  *
  * @date 2012 (created)
  *
- * @section toc Table of Contents
+ * @section eldbus_toc Table of Contents
  *
  * @li @ref eldbus_main_intro
  * @li @ref eldbus_main_compiling

src/lib/embryo/Embryo.h

@@ -8,7 +8,7 @@ These routines are used for Embryo.
 @date 2004 (created)
 @note based on Compuphase (http://www.compuphase.com) PAWN language.
 
-@section toc Table of Contents
+@section embryo_toc Table of Contents
 
 @li @ref embryo_main_intro
 @li @ref embryo_main_compiling

src/lib/emotion/Emotion.h

@@ -14,7 +14,7 @@
  *
  * @date 2003 (created)
  *
- * @section toc Table of Contents
+ * @section emotion_toc Table of Contents
  *
  * @li @ref emotion_main_intro
  * @li @ref emotion_main_work

src/lib/eo/Eo.h

@@ -48,7 +48,7 @@ extern "C" {
  *
  * @date 2012 (created)
  *
- * @section toc Table of Contents
+ * @section eo_toc Table of Contents
  *
  * @li @ref eo_main_intro
  * @li @ref eo_main_compiling

src/lib/eolian/Eolian.h

@@ -38,7 +38,7 @@ extern "C" {
  *
  * @date 2014 (created)
  *
- * @section toc Table of Contents
+ * @section eolian_toc Table of Contents
  *
  * @li @ref eolian_main_intro
  * @li @ref eolian_main_compiling

src/lib/eolian/Eolian_Aux.h

@@ -38,7 +38,7 @@ extern "C" {
  *
  * @date 2018 (created)
  *
- * @section toc Table of Contents
+ * @section eolian_aux_toc Table of Contents
  *
  * @li @ref eolian_aux_main_intro
  *

src/lib/ephysics/EPhysics.h

@@ -6,7 +6,7 @@
  *
  * @date 2012 (created)
  *
- * @section toc Table of Contents
+ * @section ephysics_toc Table of Contents
  *
  * @li @ref ephysics_main_intro
  * @li @ref ephysics_main_compiling

src/lib/ethumb/Ethumb.h

@@ -55,7 +55,7 @@ extern "C" {
  *
  * @date 2009 (created)
  *
- * @section toc Table of Contents
+ * @section ethumb_toc Table of Contents
  *
  * @li @ref ethumb_main_intro
  * @li @ref ethumb_main_compiling

src/lib/evas/Evas.h

@@ -3,7 +3,7 @@
 
    @date 2000 (created)
 
-   @section toc Table of Contents
+   @section evas_toc Table of Contents
 
    @li @ref evas_main_intro
    @li @ref evas_main_work

src/lib/evas/Evas_Eo.h

@@ -132,7 +132,7 @@ struct _Efl_Canvas_Object_Animation_Event
  *
  * @since 1.10
  *
- * @section toc Table of Contents
+ * @section evas_canvas3d_toc Table of Contents
  *
  * @li @ref evas_canvas3d_intro
  * @li @ref evas_canvas3d_example

src/lib/evil/evil_main.h

@@ -6,7 +6,7 @@
  * @author Vincent Torri
  * @date 2008 (created)
  *
- * @section toc Table of Contents
+ * @section evil_toc Table of Contents
  *
  * @li @ref evil_main_intro
  * @li @ref evil_main_ack