Implement PartialEq, Hash for all UDFs (`ScalarUDFImpl`)

[findepi]

Implement PartialEq, Hash for all UDFs (ScalarUDFImpl) that do not implement PartialEq, Hash yet.
This should boil down to adding #[derive(PartialEq, Hash)] to all of them.

• depends on Derive UDF (ScalarUDFImpl) equality from PartialEq, Hash #16865