Add before_each_task and after_each_task support
#1887
| Job | Run time |
|---|---|
| 3m 21s | |
| 3m 53s | |
| 1m 33s | |
| 3m 23s | |
| 3m 36s | |
| 1m 40s | |
| 3m 37s | |
| 3m 29s | |
| 1m 48s | |
| 3m 36s | |
| 1m 58s | |
| 56s | |
| 32m 50s |