Release python-usb-protocol 0.9.0

[antoinevg]

### Issues
- [ ] https://github.com/greatscottgadgets/python-usb-protocol/issues/33
- [x] Add support for WCID descriptors
- [ ] https://github.com/greatscottgadgets/python-usb-protocol/issues/35
- [ ] #2
- [ ] https://github.com/greatscottgadgets/python-usb-protocol/issues/34
- [ ] https://github.com/greatscottgadgets/python-usb-protocol/issues/28

### Pull Requests
- [ ] https://github.com/greatscottgadgets/python-usb-protocol/pull/36
- [ ] https://github.com/greatscottgadgets/python-usb-protocol/pull/21
- [ ] https://github.com/greatscottgadgets/python-usb-protocol/pull/27
- [ ] https://github.com/greatscottgadgets/python-usb-protocol/pull/31
- [ ] #25
- [ ] https://github.com/greatscottgadgets/python-usb-protocol/pull/41
- [ ] https://github.com/greatscottgadgets/python-usb-protocol/pull/29