Add support for Syscoin Platform Tokens (UTXO)

[bstr156]

Would be great to have atomic swaps for tokens that exist on the Syscoin token platform. Going further, the ability for a swap to be conducted with minimal interaction between the parties for auction-type functionality. Extreme example: Seller sets their listing, walks away. Returns to find buyer has bought, deal is done, and assets have already been swapped, all conducted in a non-custodial manner. Would love to see a creative solution to this without involving a custom smart-contract!

There are a couple of packages for integrating with Syscoin.

• syscoin-js (A javascript library for interacting directly with a Syscoin RPC Server)
• syscoinjs-lib (A high-level Web 3.0 type SDK that uses a Syscoin Blockbook instance for backend. Uses complementing libraries such as syscointx-js which is a raw transaction creation library, and others.)

In general, for conducting token value transfers our current documentation might be sufficient. That said, our dev-focused documentation is an active work-in-progress. Let me know if there's a particular area that you want to know more about in the immediate and I will do my best to fill that gap promptly.

Existing documentation for assets:

• Syscoin Core asset interface
• Web 3.0 SDK examples (an assetAllocationSend example is included)

[artemii235]

Thanks for opening the issue! Our roadmap is quite set for upcoming months but I will clarify the possibility of integration with the team.