Allow displaying Japanese character with wxMotif/ANSI under a

Japanese EUC-JP locale:

- add a #define (wxMOTIF_NEW_FONT_HANDLING) defaulting to
  off
- factor the code for getting text extents in a central
  wxGetTextExtent function
- when the new font handling is enabled load a fontset instead of
  a single font. For non-Japanese locales this should load a fontset
  containing a single font.
- on a Japanese locale set the default point size to 15: the Japanese
  fonts I have are much more readable like this.
- do not set the wordwrap property for multiline wxTextCtrl with
  OpenMotif 2.1, otherwise it crashes when text is added


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@35035 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

version-script.in

@@ -31,6 +31,7 @@
         *wxEVT_MEDIA_LOADED*;
         *wxGenericListCtrl*SetItemFont*wxFont*;
         *wxGenericListCtrl*GetItemFont*;
+        *wxGetTextExtent*wxFont*wxString*;
         *wxImage*HSVValue*;
         *wxImage*RGBValue*;
         *wxImage*RotateHue*;