Stm32 init (#100)

hid/lib/drivers-stm32/README.md

@@ -0,0 +1,18 @@
+This is WIP. Use AVR version as reference.
+
+TODO:
+- [x] Serial communication
+- [x] USB keyboard
+- [x] USB keyboard - add scroll status
+- [x] USB keyboard - key sending
+- [x] USB keyboard - test key mapping
+- [x] Persistent storage
+- [ ] SPI communication
+- [ ] PS2 keyboard
+- [x] USB absolute mouse
+- [x] USB absolute mouse - add whele
+- [x] USB relative mouse
+- [x] USB relative mouse - add whele
+- [ ] USB mouses - up down button
+- [ ] WIN98 USB mouse
+- [x] undefine SERIAL_USB