* store zero strains compactly * added docs * added proptest * add feature to store strains compactly * update ci * rename CompactZerosVec to StrainsVec * add size_hint for iter * rename iter * minor adjustments * more minor adjustments
* store zero strains compactly * added docs * added proptest * add feature to store strains compactly * update ci * rename CompactZerosVec to StrainsVec * add size_hint for iter * rename iter * minor adjustments * more minor adjustments