Update session id logic

[jborean93]

Updates the session id lookup logic to comply with the MS-SMB2 spec.

Fixes: #289

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.06%. Comparing base (2bed7bc) to head (3612fb0).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #293      +/-   ##
==========================================
+ Coverage   99.04%   99.06%   +0.01%     
==========================================
  Files          24       24              
  Lines        5116     5117       +1     
==========================================
+ Hits         5067     5069       +2     
+ Misses         49       48       -1     

Flag	Coverage Δ
macOS	68.18% <33.33%> (+<0.01%)	⬆️
py3.10	99.02% <100.00%> (+0.01%)	⬆️
py3.11	99.02% <100.00%> (+0.01%)	⬆️
py3.12	99.02% <100.00%> (+0.01%)	⬆️
py3.8	99.02% <100.00%> (+0.01%)	⬆️
py3.9	99.06% <100.00%> (+0.01%)	⬆️
ubuntu	96.83% <100.00%> (+0.02%)	⬆️
windows	98.98% <100.00%> (+0.01%)	⬆️
x64	99.06% <100.00%> (+0.01%)	⬆️
x86	98.98% <100.00%> (+0.01%)	⬆️

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