GetFileDialog95A/W.
- Use Unicode as default for strings from the OPENFILENAME structures.
- Fill out the OPENFILENAME structure before sending the FILEOK
  notification.
- Send a CDN_FOLDERCHANGE notification on OPENFILENAME dialog init.
- Fix miscalculation of the size of Explorer style file dialog boxes
  with templates.
- Remove redundant MapHModuleLS and MapHModuleSL calls that also cause
  hInstance to be trashed when it holds a template pointer instead of a
  real hInstance (when OFN_ENABLETEMPLATEPOINTER is specified).