Add support for VK_OEM_102 key under wxMSW.

This is the "<>|" key on German keyboard and is also used in many other
layouts so failing to handle it resulted in not receiving EVT_KEY_XXX events
for these keys in wxWidgets programs.

Closes #13558.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@69844 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/msw/missing.h

@@ -94,6 +94,7 @@
     #define VK_OEM_5        0xDC
     #define VK_OEM_6        0xDD
     #define VK_OEM_7        0xDE
+    #define VK_OEM_102      0xE2
 #endif
 
 #ifndef VK_OEM_COMMA