Update JoinRaw bindings type to accept arrays

[RyWilliams]

This extends the bindings in the JoinRaw type to accept arrays.

Example use case in postgres:

knex('table').joinRaw(
  `join (
    SELECT id
    FROM joined_table jt
    WHERE jt.id = ?
    AND jt.value = ANY(?)
  ) AS j ON j.id = t.id`,
  [123, ['value one', 'value two']],
);

[maximelkin]

Can you also add this in typings tests? into test-tsd/select.test-d.ts

Also, this interface looks similar to RawQueryBuilder, but joinRaw can't accept Raw instance (in js code and in typings).

@kibertoad .joinRaw() accepting Raw instance looks more consistent, what do you think?

[kibertoad]

Yes, would be great to accept it there. Should be fairly simple too.