R1:c767c971ca79

Add "persistence" types (data, cache, or index) to tables, and tweak what "storage dump" dumps

Summary:
Ref T13000. This marks each table as either "data" (normal data), "cache" (automatically rebuilt, no need to ever dump) or "index" (can be manually rebuilt).

By default, `bin/storage dump` dumps data and index tables, but not cache tables.

With `--no-indexes`, it dumps only data tables. Indexes can be rebuilt after a restore with `bin/search index --all ...`.

Test Plan:
- Ran `--no-indexes` and…