Applied patch [ 642172 ] Fix menu accelerators in ownerdrw

Applied patch [ 642172 ] Fix menu accelerators in ownerdrw

Fixed bug when updating menu text to inform the
ownerdrw code of the new menu accelerator attached to
the menu item.
Improved the layout of the owenerdrw menu ownerdrw to
correctly account for menu accelerators, submenu
arrows etc.

Scott Pleiter

(Note from JACS: I've also changed the sample to show the Quit item
correctly aligned; it needs to have the font set before wxWin knows
it's an ownerdrawn item.)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@18140 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775