Fix and optimize bin1d_vec + extend units tests + fix imprecise bin edge creation
#197
| Job | Run time |
|---|---|
| 1m 7s | |
| 1m 2s | |
| 1m 1s | |
| 1m 0s | |
| 59s | |
| 2m 3s | |
| 2m 16s | |
| 2m 1s | |
| 2m 2s | |
| 4m 21s | |
| 17m 52s |