Fix rename operations for a DFS path

[jborean93]

Turns out the path is resolved correctly and I can use the DFS path to be normalized but I need to ensure

• The DFS path is done as part of get_smb_tree so all callers get this new path
• The header is build to include the DFS operation flag for more than just a CREATE request

Fixes: #170 (comment)

[codecov]

Codecov Report

Merging #191 (2415aa4) into master (08b7dcf) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #191   +/-   ##
=======================================
  Coverage   99.09%   99.09%           
=======================================
  Files          24       24           
  Lines        5076     5079    +3     
=======================================
+ Hits         5030     5033    +3     
  Misses         46       46           

Flag	Coverage Δ
macOS	68.18% <33.33%> (-0.03%)	⬇️
py3.10	99.07% <100.00%> (+<0.01%)	⬆️
py3.7	99.07% <100.00%> (+<0.01%)	⬆️
py3.8	99.07% <100.00%> (+<0.01%)	⬆️
py3.9	99.09% <100.00%> (+<0.01%)	⬆️
ubuntu	96.78% <100.00%> (+<0.01%)	⬆️
windows	99.01% <100.00%> (+<0.01%)	⬆️
x64	99.09% <100.00%> (+<0.01%)	⬆️
x86	99.01% <100.00%> (+<0.01%)	⬆️

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Impacted Files	Coverage Δ
src/smbclient/_io.py	99.02% <ø> (-0.01%)	⬇️
src/smbclient/_os.py	98.49% <100.00%> (+0.01%)	⬆️
src/smbclient/_pool.py	95.93% <100.00%> (+0.04%)	⬆️
src/smbprotocol/connection.py	99.84% <100.00%> (ø)

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