Smart contract deploy tool

[pcppcp]

We'll eventually need a tool that can deploy smart contracts.

requirements

• [ ] compile arbitary smart contract into a bytecode
• [ ] store the bytecode on-chain
• [ ] do not use eth_personal_*. Private key must be read from a keyfile and used to sign the transaction locally
• [ ] create tests for the deployment using pytest framework

take your inspiration from here (it does most of the things listed above) https://github.com/raiden-network/raiden-contracts/blob/master/raiden_contracts/deploy/__main__.py