Use BigInteger in Neo.Json

[cschuchardt88]

Summary or problem description
Cannot implicitly convert BigInteger to Neo.Json.JToken or Neo.Json.JNumber. You either need to update Neo.Json or remove it and use something else. Its so outdated it's not even funny.

Do you have any solution you want to propose?
To be able to use BigInteger in BigNumber form in json.

{
  "Value": 100000000000000000000000
}

Neo Version

• Neo 3.6.2

Where in the software does this update applies to?

• core
• Neo.Json