functions to support HexBytes or bytes as input

[dpaiton]

Currently Pypechain functions require bytes input (not HexBytes) for the position function call. We should fix this to allow for bytes | HexBytes input type.

e.g.

morpho_market_id = bytes(interface.morpho_market_id)

# Get token balances
vault_shares = (
    interface.morpho_contract.functions.position(morpho_market_id, hyperdrive_contract.address)
    .call(block_identifier=block_identifier or "latest")
    .supplyShares
)