Bittrex-websocket

* Set websocket-client==0.46.0

* Reconnection - Experimental
* Fixed a bug when subscribing to multiple subscription types at once resulted in opening unnecessary connections even though there is sufficient capacity in the existing [Commit 7fd21c](https://github.com/slazarov/python-bittrex-websocket/commit/7fd21cad87a8bd7c88070bab0fd5774b0324332e)
* Numerous code optimizations

* Updated cfscrape minimum version requirement ([Issue 12](https://github.com/slazarov/python-bittrex-websocket/issues/12)).

v.0.0.4
0.0.4 - Changed the behaviour of how on_ticker_update channel works: The message now contains a single ticker instead of a dictionary of all subscribed tickers.

0.0.3 - Removed left over code from initial release version that was throwing errors (had no effect on performance).

v.0.0.2

* Additional un/subscribe and order book sync state querying methods added.
* Better connection and thread management.
* Code optimisations
* Better code documentation
* Added additional connection URLs

v.0.0.1