2.2.0

• CQS Improvements
• Replacement of dependency of RPC library to custom
  • This will resolve the issues with conflicting System.Net.Http
  • Improve performance by having a single HttpClient per web3, but that expires every 60 seconds to prevent DNS issues, but still preventing running out of Sockets.

• Performance tests on Http process around 6000 queries in 1.5 seconds.

• New in memory nonce service with multithreading support, on POA processes 1000 transactions with no nonces issues (~60 seconds)
• Parity trace APIs
• General fixes