🐛 Bug Fixes
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<summary>Speed up `trks_stats` by a factor of 5 willgraf (84)</summary>
`trks_stats` is used to calculate various statistics on a trks file. The old implementation ended up calling `np.unique` inside a double for loop, which caused the runtime to spike. These changes update the internal logic to greatly improve the runtime (namely, by separating the logic into two different for loops, updating the time complexity from O(batch * frames * cells) to O(batch*(frames+cells)).
Some example times on the current registry tracking data (all times include time to run `load_trks`):
- `test.trks` from 227s to 47s
- `val.trks` from 549s to 110s
- `train.trks` from 1968s to 386s
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