Schema-based sharding

[levkk]

Description

1. Implement [Query engine] Schema-based sharding #584
2. Move config into its own crate.
3. Move Vector into its own crate.

[codecov]

Codecov Report

❌ Patch coverage is 74.84026% with 630 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
pgdog-config/src/data_types.rs	0.00%	87 Missing ⚠️
pgdog-vector/src/lib.rs	64.43%	69 Missing ⚠️
pgdog-config/src/core.rs	84.95%	54 Missing ⚠️
pgdog-config/src/replication.rs	45.67%	44 Missing ⚠️
pgdog/src/frontend/router/cli.rs	0.00%	36 Missing ⚠️
pgdog-config/src/users.rs	46.03%	34 Missing ⚠️
pgdog-config/src/util.rs	19.44%	29 Missing ⚠️
pgdog-config/src/sharding.rs	70.52%	28 Missing ⚠️
pgdog-config/src/error.rs	0.00%	24 Missing ⚠️
pgdog/src/frontend/router/parser/table.rs	72.50%	22 Missing ⚠️
... and 26 more

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