support atomic swaps with ethereum

[GlenDC]

As tfchain supports (thanks to Rivine) the atomic swap protocol as implemented by decred (see: https://github.com/decred/atomicswap), we already support bitcoin, litecoin, monacoin, particl, polis, vertcoin, viacoin and zcoin.

Now it would be great if we also support Etheruem.

This would require the implementation of a command line tool, as well as an ethereum smart contract (in solidity?). Whether we add that tool and contract in this repo, Rivine, a separate repo or contribute it back to https://github.com/decred/atomicswap is currently undecided.

[GlenDC]

Related issue created at decred/atomicswap#74.

[GlenDC]

Rivine Feature issue rivine/rivine#243.

[GlenDC]

Closing this issue, as it is out of our hands. Support is there. The tooling is ready.