Core runtime for the Tork ORM.
This crate holds the backend-neutral pieces of the ORM: the [Value] type that
crosses the driver boundary, the owned [Row] returned from queries, the
[dialect] abstraction that makes SQL generation backend-specific, the database
[driver]s, and the [Database] handle and [Executor] trait used to run SQL.
End users do not depend on this crate directly; they depend on tork-orm, which
re-exports this runtime together with the derive macros.