Update fcl-six code to Cadence 1.0 (Flow Port)

[bthaile]

Transactions need to be updated to be compliant with Cadence 1.0. This npm package is used by flow port, ledger relies on flow port.

Josh is updating core contract transactions and will be releasing a forum post describing the changes needed. fcl-six needs to have the same transactions and the tx hashes need to match hashes sent to vacuum labs for ledger firmware update.

Repo:
https://github.com/onflow/fcl-six

Testnet: https://github.com/onflow/flow-core-contracts/blob/stable-cadence/lib/go/templates/manifest.testnet.json
Mainnet: https://github.com/onflow/flow-core-contracts/blob/stable-cadence/lib/go/templates/manifest.mainnet.json