Add 802.11 Microsoft WME element support

[middleendian]

Dot11 Microsoft WME Element

Scope:

• Adds Dot11EltMicrosoftWME for Microsoft vendor-specific WME/WMM
  Information and Parameter elements.
• Dispatches Microsoft OUI 00:50:f2 vendor element type 0x02 to the WME
  parser while keeping short Microsoft vendor elements as generic vendor
  elements.
• Parses WME subtype, version, qos_info, and the four AC Parameter
  records for WME Parameter elements.
• Keeps unknown or extra WME body bytes in info.

Intentional partial support:

• This patch only handles Microsoft WME/WMM vendor element type 0x02.
• Microsoft WPS vendor elements (type == 0x04) remain a TODO and continue to
  fall back to Dot11EltVendorSpecific.

Test command used:

test/run_tests -t test/scapy/layers/dot11.uts -F

Result:

PASSED=74 FAILED=0

[codecov]

Codecov Report

❌ Patch coverage is 92.30769% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 80.50%. Comparing base (5967449) to head (80cebf2).
⚠️ Report is 3 commits behind head on master.

Files with missing lines	Patch %	Lines
scapy/layers/dot11.py	92.30%	2 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #5068   +/-   ##
=======================================
  Coverage   80.49%   80.50%           
=======================================
  Files         390      390           
  Lines       96758    96795   +37     
=======================================
+ Hits        77886    77921   +35     
- Misses      18872    18874    +2     

Files with missing lines	Coverage Δ
scapy/layers/dot11.py	92.29% <92.30%> (-0.02%)	⬇️

... and 6 files with indirect coverage changes

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