Updated CryptoExchange.Net to V13.1.0

• Updated CryptoExchange.Net to v13.0.0
• Shared APIs
  • Added SharedApi V2 support
  • Added .SharedApi property to clients
  • Added (I)TapbitSharedApiClient containing all V2 SharedApi references
  • Added SharedApi to TapbitOptions to provide SharedApi related options
  • See https://cryptoexchange.jkorf.dev/docs/shared-api?sharedApiVersion=v2 for more info about the V2 update and https://github.com/JKorf/CryptoExchange.Net/blob/master/docs/SHARED_API_V2_MIGRATION.md for migrating from V1
  • SharedApi V1 will still be supported
• Rate limiting
  • Added rate limit admission callback to client options to allow rate limit admission ruling on request definition
  • Added WithRateLimitAdmissionAsync to client to allow rate limit admission ruling on a specific request
  • Update rate limit safety margin logic
  • Fixed some rate limit calculation issues
• Request coalescing
  • Sending identical public GET requests on the same client at the same time will only send a single request to the server and use the same response
  • Coalescing is enabled by default and can be disabled with the RequestCoalescingEnabled client option

Initial release