[axl_io] expose const io::File* via io::SharedMemoryTransport::getFile (for uniformity with io::MappedFile)
[axl_io] expose const io::File* via io::SharedMemoryTransport::getFile (for uniformity with io::MappedFile)

vovkos/axl,vovkos/axl,vovkos/axl,vovkos/axl