feat: small speedups to the gap parser

[bdraco]

There were a few cython defs missing

[codecov]

Codecov Report

Patch coverage: 100.00% and no project coverage change.

Comparison is base (b5e13cc) 99.51% compared to head (3859791) 99.52%.
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #30   +/-   ##
=======================================
  Coverage   99.51%   99.52%           
=======================================
  Files           5        5           
  Lines         206      210    +4     
  Branches       29       30    +1     
=======================================
+ Hits          205      209    +4     
  Misses          1        1           

Files Changed	Coverage Δ
src/bluetooth_data_tools/__init__.py	100.00% <100.00%> (ø)
src/bluetooth_data_tools/gap.py	100.00% <100.00%> (ø)

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.