Disable ptp option

[samuelbray32]

Fixes #66

• Implements disable_ptp parameter that overides the ptp flag in the rec header and sets ptp_enabled=False. Useful when ptp does not perform correctly at experiment time, but trodes timestamps are still functional.
• Adds warning if PTP timestamps correspond to a date before 2000

[codecov]

Codecov Report

Attention: 2 lines in your changes are missing coverage. Please review.

Comparison is base (bccfeb8) 90.62% compared to head (8c7447f) 90.55%.

Files	Patch %	Lines
src/trodes_to_nwb/convert.py	66.66%	1 Missing ⚠️
src/trodes_to_nwb/convert_position.py	66.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #69      +/-   ##
==========================================
- Coverage   90.62%   90.55%   -0.07%     
==========================================
  Files          25       25              
  Lines        2346     2351       +5     
==========================================
+ Hits         2126     2129       +3     
- Misses        220      222       +2     

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