Send bitcoin tx data to evm

[oxf71]

Goal

• add bitcoin bridge config
• send bitcoin transfer data to bridge (bridge smart contract deployed to eth)

config

[bridge]
// eth rpc call url
eth-rpc-url = ""
// eth call private key
eth-priv-key = ""
// bridge contract address
contract-address = ""
// brdige contract abi file
abi = ""
// gas limit
gas-limit =