This refactors reception/decoding part of `gnrc_sixlowpan_iphc` to the more layered approach modeled in #8511. Since the reception part is already complicated enough I decided to divide send and receive up into separate changes.
This refactors reception/decoding part of `gnrc_sixlowpan_iphc` to the more layered approach modeled in #8511. Since the reception part is already complicated enough I decided to divide send and receive up into separate changes.