Add tests actually calling hab launch for batch and PowerShell
#440
| Job | Run time |
|---|---|
| 27s | |
| 14s | |
| 27s | |
| 24s | |
| 27s | |
| 28s | |
| 22s | |
| 1m 24s | |
| 1m 27s | |
| 1m 22s | |
| 1m 22s | |
| 1m 30s | |
| 22s | |
| 29s | |
| 24s | |
| 24s | |
| 22s | |
| 1m 9s | |
| 1m 7s | |
| 1m 3s | |
| 1m 33s | |
| 1m 15s | |
| 36s | |
| 33s | |
| 0s | |
| 19m 11s |