feat: Support Boolean datatypes after klickhouse switch

[vrongmeal]

This can be extended for other datatypes as well now (relatively easily).

Thinking of forking klickhouse for our purpose. See the comment under Date32 for details.

[vrongmeal]

@scsmithr can you try this out with clickhouse cloud once?

[scsmithr]

Works for me

> select * from ch.default.bools;
┌─────────┐
│ hi      │
│ ──      │
│ Boolean │
╞═════════╡
│ true    │
│ false   │
└─────────┘