feat: cache realpath and realpathSync methods
#317
| Job | Run time |
|---|---|
| 25s | |
| 28s | |
| 32s | |
| 26s | |
| 31s | |
| 24s | |
| 24s | |
| 2m 9s | |
| 1m 8s | |
| 1m 23s | |
| 1m 10s | |
| 2m 5s | |
| 2m 11s | |
| 1m 20s | |
| 59s | |
| 1m 28s | |
| 41s | |
| 39s | |
| 1m 8s | |
| 19m 31s |