added the mention of library in which each class is defined to the documentation (patch 1756715)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@47777 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/latex/wx/keyevent.tex

@@ -62,6 +62,10 @@ key event function, otherwise menu shortcuts may cease to work under Windows.
 
 <wx/event.h>
 
+\wxheading{Library}
+
+\helpref{wxCore}{librarieslist}
+
 \wxheading{Event table macros}
 
 To process a key event, use these event handler macros to direct input to member