Non ptp epoch restriction

[samuelbray32]

Resolves #80

• When matching trodes timestamps from position tracking and rec file, first restrict the rec trodes timestamps to those corresponding to a rec system clock time within the epoch
• Enables accurate mapping when trodes timestamps are not uniques across epochs, but are unique within the epoch
• Gives minor speed and efficiency improvements
• Added documentation for get_position_timestamps()

[codecov]

Codecov Report

Attention: 4 lines in your changes are missing coverage. Please review.

Comparison is base (8a907f4) 90.70% compared to head (d6ec5be) 90.56%.

❗ Current head d6ec5be differs from pull request most recent head 5cc0485. Consider uploading reports for the commit 5cc0485 to get more accurate results

Files	Patch %	Lines
src/trodes_to_nwb/spike_gadgets_raw_io.py	62.50%	3 Missing ⚠️
src/trodes_to_nwb/convert_ephys.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #81      +/-   ##
==========================================
- Coverage   90.70%   90.56%   -0.14%     
==========================================
  Files          25       25              
  Lines        2398     2407       +9     
==========================================
+ Hits         2175     2180       +5     
- Misses        223      227       +4     

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[samuelbray32]

Confirmed that these changes resolve conversion with non-ptp, non-unique trodes timestamps conversions