Additionaly, this:
- removes the unused function fu_steelseries_device_get_transfer_size()
- renames function fu_steelseries_device_command_error_to_error() to
fu_steelseries_fizz_command_error_to_error()
It's a common action for plugins to call FuUsbDevice->open() then claim
interfaces, and then release them just before FuUsbDevice->close().
It's also something a lot of plugins get wrong, so provide common code
to handle it correctly in one place.
We now have 9 different plugins all using this functionality, and we're
about to add one more. Move this into common code so that all the
plugins are using the same endian and bufsz-safe versions.
