Add Schema Inference for Values Table Function

Why it matters

This feature enables ClickHouse to automatically determine the column types and structure when using the values table function, simplifying query writing and improving usability by removing the need for manual column definitions.

How to use it

Users can simply use the values table function without explicitly specifying the schema. For example:

SELECT * FROM values
('1', 2), ('3', 4)

ClickHouse will infer the data types for each column automatically.