Create a dashmate cluster and write networking code for CoinJoin

[wmerfalen]

Description

This PR contains all the relevant code and content to accomplish the following:

• Create, maintain, and develop against a regtest cluster using dashmate
• Properly create a dsa message with collateral SOLVED
• Parse dssu messages
• Send and receive dsq messages using senddsq
• Parse dssu and dsq messages
• Demonstrate how to connect to a masternode multiple times and concurrently handle each connection individually
• Document and begin work on the browser library portion of the SDK

https://www.youtube.com/watch?v=-pbzPd3deMA&t=154s 3.20 hours
https://www.youtube.com/watch?v=wN9YFHq42qE 2.25 hours
https://www.youtube.com/watch?v=4qVg-Mk6LLc 2.75 hours
https://www.youtube.com/watch?v=JuzXdOGSfvk 3.20 hours
https://www.youtube.com/watch?v=Sn9M86wMwls 1.5 hours
https://www.youtube.com/watch?v=cxsnZnWJlLw 0.90 hours
https://www.youtube.com/watch?v=t5ZbnfqZRqk 2.25 hours
https://www.youtube.com/watch?v=OUipoSfBRao 7.5 hours
https://www.youtube.com/watch?v=q3AeGS5mP9s 1.90 hours

Total stream hours: 27.7

[socket-security[bot]]

New and updated dependency changes detected. Learn more about Socket for GitHub ↗︎

Packages		Version	New capabilities	Transitives^1	Size	Publisher
dashtx	🆕	0.9.0	None	+0	48.5 kB	coolaj86
mocha	🆕	10.2.0	eval, filesystem, shell, environment	+77	5.15 MB	juergba
@dashincubator/secp256k1	🆕	1.7.1-5	None	+0	67 kB	coolaj86
@dashevo/dashcore-lib	🆕	0.20.6	eval, network, filesystem, environment	+24	7.07 MB	shumkov