A P2P trollbox for BitShares coming with the next release

Thanks to the awesome work of Hive account@svk, we will see a p2p trollbox in BitShares
with the next release. This commit adds a WebRTC-based decentralzied trollbox to the DEX that merely uses a centralized server for peer discovery.

Also thanks to Hive account@hitchcott who's a frontend dev for DGX and suggested the library!

Things are getting more and more excited!