Allow passing in additional websocket connect parameters

[alexgolec]

No description provided.

[codecov]

Codecov Report

Merging #278 (77e1159) into master (08e36ea) will increase coverage by 0.06%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #278      +/-   ##
==========================================
+ Coverage   99.57%   99.64%   +0.06%     
==========================================
  Files          19       19              
  Lines        2142     2502     +360     
  Branches      201      244      +43     
==========================================
+ Hits         2133     2493     +360     
  Misses          4        4              
  Partials        5        5              

Flag	Coverage Δ
unittests	99.64% <100.00%> (+0.06%)	⬆️

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Impacted Files	Coverage Δ
tda/streaming.py	99.89% <100.00%> (+0.06%)	⬆️

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