Rename gtk{,1}/tbargtk.{h,cpp} to toolbar.{h,cpp}.

We don't use crptknm$port.cpp naming convention even for MSW any more and
there is really no reason to continue to do it for just this one file in
wxGTK.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@62849 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/gtk1/font.cpp

@@ -668,7 +668,7 @@ void wxFont::DoSetNativeFontInfo( const wxNativeFontInfo& info )
 
 static GdkFont *g_systemDefaultGuiFont = NULL;
 
-// this is also used from tbargtk.cpp and tooltip.cpp, hence extern
+// this is also used from toolbar.cpp and tooltip.cpp, hence extern
 extern GdkFont *GtkGetDefaultGuiFont()
 {
     if (!g_systemDefaultGuiFont)