Turbopack: add tool to print DB structure (#80148)
### What?
Adds a small CLI tool that prints the database structure like that:
```
META 00000417.meta: family = 4,
SST 00000411.sst: 000dade6cc76e41a - fffa6721f94e901f (p = 1/1)
AQMF 4695 entries = 4 KiB
180 KiB = 0 kiB key compression dict + 23 KiB value compression dict + 46 blocks (avg 3512 bytes/block)
META 00000416.meta: family = 3,
SST 00000412.sst: 0025bba83f4b6ab9 - ffde0483d58f3b5e (p = 1/1)
AQMF 4695 entries = 4 KiB
182 KiB = 24 kiB key compression dict + 0 KiB value compression dict + 46 blocks (avg 3522 bytes/block)
META 00000415.meta: family = 1,
SST 00000389.sst: 00005eac4b66cb4e - 3fffed60c1451cfe (p = 1/4)
AQMF 299033 entries = 292 KiB
24350 KiB = 0 kiB key compression dict + 63 KiB value compression dict + 3596 blocks (avg 6915 bytes/block)
SST 00000391.sst: 800015a5a9666318 - bfffdd05778fc576 (p = 1/4)
AQMF 299033 entries = 292 KiB
24851 KiB = 0 kiB key compression dict + 63 KiB value compression dict + 3933 blocks (avg 6453 bytes/block)
...
...
```
The tool is only intended for internal usage and not exposed to the end user
