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/metafile.tex

@@ -14,6 +14,10 @@ is to use a wxMetafileDC.
 
 <wx/metafile.h>
 
+\wxheading{Library}
+
+\helpref{wxCore}{librarieslist}
+
 \wxheading{See also}
 
 \helpref{wxMetafileDC}{wxmetafiledc}
@@ -103,6 +107,10 @@ closing your disk-based metafile device context.
 
 <wx/metafile.h>
 
+\wxheading{Library}
+
+\helpref{wxCore}{librarieslist}
+
 \wxheading{See also}
 
 \helpref{wxMetafile}{wxmetafile}, \helpref{wxDC}{wxdc}