feat: make FrechetDistance generic over Metric Spaces
#4017
| Job | Run time |
|---|---|
| 2m 20s | |
| 1m 1s | |
| 42s | |
| 2m 1s | |
| 2m 3s | |
| 37s | |
| 30s | |
| 1m 59s | |
| 51s | |
| 37s | |
| 28s | |
| 39s | |
| 54s | |
| 29s | |
| 53s | |
| 1m 8s | |
| 1s | |
| 0s | |
| 17m 13s |