Refactor: changed location of transfer package

packages/ledgerstate/conflict/id.go

packages/ledgerstate/constants.go

packages/ledgerstate/ledgerstate.go

packages/ledgerstate/ledgerstate_test.go

packages/ledgerstate/outputs.png

packages/ledgerstate/outputs2.png

packages/ledgerstate/reality.go

packages/ledgerstate/transfer.go

packages/ledgerstate/transfer/hash.go

packages/ledgerstate/transfer_output.go

packages/ledgerstate/transfer_output_booking.go

packages/ledgerstate/transfer_output_test.go

packages/ledgerstate/transferoutput/reference.go

packages/ledgerstate/visualizer.go