MFC: Add more extra libraries for the static library case

When using _WIN32_WINNT >= 0x0501, the static MFC libraries also
require Uxtheme and windowscodecs. Add them to the variable
VTK_MFC_EXTRA_LIBS to avoid linking errors in programs that
link to VTK_LIBRARIES when built with the MFC module enabled
and static settings for the MFC libs.

Change-Id: I5067a0410f01547067873986c9aa00b162cecbcb
Examples: Modernize the MFC Examples header files

Use Windows XP or later values for _WIN32_WINNT and WINVER
in Example header files. Match the values used by default
when building the VTK libraries.

You can still use VTK and the MFC Examples with earlier versions
of Windows, but you have to define _WIN32_WINNT before
including any of the VTK or Examples header files.

By default, the Examples header files should match what is
found in the VTK header files.

Change-Id: I8035ce25d9f42004de14d3c40332516eb3b0ef2a
Merge topic 'fix-MFC-extra-libs' into master

a3257608 Examples: Modernize the MFC Examples header files
e8de576c MFC: Add more extra libraries for the static library case