Adjust imports order

dapps/valuetransfers/packages/tangle/attachment.go

dapps/valuetransfers/packages/tangle/consumer.go

dapps/valuetransfers/packages/tangle/events.go

dapps/valuetransfers/packages/tangle/missingoutput.go

dapps/valuetransfers/packages/tangle/missingpayload.go

dapps/valuetransfers/packages/tangle/objectstorage.go

dapps/valuetransfers/packages/tangle/output.go

dapps/valuetransfers/packages/tangle/payloadapprover.go

dapps/valuetransfers/packages/tangle/payloadmetadata.go

dapps/valuetransfers/packages/tangle/payloadmetadata_test.go

dapps/valuetransfers/packages/tangle/tangle.go

dapps/valuetransfers/packages/tangle/tangle_test.go

dapps/valuetransfers/packages/tangle/transactionmetadata.go

dapps/valuetransfers/packages/transaction/inputs.go