Implement discrete attosecond-resolution TimeDeltas

[helgee]

This circles back to the before times when we had discrete attosecond-resolution time deltas:

lox/crates/lox_core/src/time/epochs.rs

Line 43 in 739a847

pub struct RawEpoch {

[codecov]

Codecov Report

❌ Patch coverage is 89.43270% with 95 lines in your changes missing coverage. Please review.
✅ Project coverage is 68.90%. Comparing base (67e7896) to head (5ee6edc).
⚠️ Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
crates/lox-time/src/deltas.rs	84.88%	70 Missing ⚠️
crates/lox-space/src/time/python/time.rs	61.11%	7 Missing ⚠️
crates/lox-orbits/src/analysis.rs	63.63%	4 Missing ⚠️
crates/lox-orbits/src/events.rs	25.00%	3 Missing ⚠️
crates/lox-space/src/python.rs	0.00%	3 Missing ⚠️
crates/lox-orbits/src/trajectories.rs	50.00%	2 Missing ⚠️
crates/lox-orbits/src/propagators/sgp4.rs	80.00%	1 Missing ⚠️
crates/lox-space/src/orbits/python.rs	0.00%	1 Missing ⚠️
crates/lox-time/src/subsecond.rs	99.57%	1 Missing ⚠️
crates/lox-time/src/time.rs	98.36%	1 Missing ⚠️
... and 2 more

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #262      +/-   ##
==========================================
+ Coverage   68.70%   68.90%   +0.19%     
==========================================
  Files          90       90              
  Lines       21458    21759     +301     
==========================================
+ Hits        14743    14992     +249     
- Misses       6715     6767      +52     

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[codspeed-hq]

CodSpeed Performance Report

Merging #262 will not alter performance

_{Comparing he/delta (5ee6edc) with main (67e7896)}

Summary

✅ 3 untouched
⏩ 1 skipped¹

Footnotes

1. 1 benchmark was skipped, so the baseline result was used instead. If it was deleted from the codebase, click here and archive it to remove it from the performance reports. ↩