Add low-level HashTable API
#598
| Job | Run time |
|---|---|
| 3m 5s | |
| 2m 19s | |
| 2s | |
| 7m 21s | |
| 4m 57s | |
| 6m 53s | |
| 4m 1s | |
| 6m 45s | |
| 4m 38s | |
| 9m 16s | |
| 5m 29s | |
| 9m 53s | |
| 5m 54s | |
| 4m 52s | |
| 1m 47s | |
| 7m 57s | |
| 5m 48s | |
| 9m 14s | |
| 8m 33s | |
| 11m 56s | |
| 12m 11s | |
| 4m 20s | |
| 4m 10s | |
| 0s | |
| 0s | |
| 2h 21m 21s |