* remove port check and move portID into genesis state
* move GenesisState to types and implement ExportGenesis
* fix build
* store bound portID in transfer state
* Update x/ibc/20-transfer/types/codec.go
Co-authored-by: Christopher Goes <cwgoes@pluranimity.org>
Co-authored-by: Federico Kunze <31522760+fedekunze@users.noreply.github.com>