Patch from Utensil Candel with large improvements to the samples documentation, and a PCH fix for the power sample.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@54310 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

interface/access.h

@@ -254,6 +254,8 @@ typedef enum
 
     @library{wxcore}
     @category{misc}
+
+    @see @sample{access}
 */
 class wxAccessible : public wxObject
 {

interface/animate.h

@@ -52,7 +52,7 @@ enum wxAnimationType
 
     <!-- @appearance{animationctrl.png} -->
 
-    @see wxAnimation
+    @see wxAnimation, @sample{animate}
 */
 class wxAnimationCtrl : public wxControl
 {
@@ -189,7 +189,7 @@ public:
     @stdobjects
     ::wxNullAnimation
 
-    @see wxAnimationCtrl
+    @see wxAnimationCtrl, @sample{animate}
 */
 class wxAnimation : public wxGDIObject
 {