Computation of CRC-5/USB for values not aligned to byte boundaries

[Nic30]

It is common to compute the CRC-5/USB for 15bits.

I do see only the API which uses whole bytes https://github.com/nanpuyue/crc/blob/master/src/lib.rs#L64 or the API with bits which does not support reflections https://github.com/nanpuyue/crc/blob/master/src/lib.rs#L98 .

Is there some trick to compute crc values also with reflection?