implement values row syntax , first part (joins)

[jongleb]

Description

This PR adds a support of VALUES ROW(..) syntax.

https://dev.mysql.com/doc/refman/8.4/en/values.html

At the current step, it's supported for JOINS, but it's already now considered as a new source, so it wouldn't be a problem to support the rest of the usages of this syntax.

Also it supports two variants of it:

SELECT p.id, x.a
FROM products p
JOIN ( VALUES ROW(...) ) AS x (a, b)
ON p.name = x.b;

And

SELECT p.id, x.a
FROM products p
JOIN ( VALUES @param ) AS x (a, b)
ON p.name = x.b;

And since VALUES with no ROWs afters is invalid syntax, I added a default expression when the passed list is empty:

SELECT %cols% WHERE FALSE

This part is up for debate, but it seems safer

[jongleb]

@ygrek Could you take a look , please

[jongleb]

@ygrek I am merging it, If you have any comments, please write and I will fix them in the next PR.