[Freewx-maint] Bug#627728: src/_*.py files needed as well

[Luke Kenneth Casson Leighton]

update: there are some _*.py files in the wxwidgets src/ subdirectory
that *must* also be copied into the same location as those *.i files
are placed [into the i_files/ subdirectory in /usr/include].

if any of these files are not included, then the wx2.8-headers package
is utterly useless for its intended purpose (namely to be used to
develop wxWidgets applications)

l.