optimize_injective_* session settings

These settings are available in system.settings and are autogenerated from source.

optimize_injective_functions_in_group_by

Replaces injective functions by it’s arguments in GROUP BY sectio

Replaces injective functions by their arguments in LIMIT BY section. Example: LIMIT 5 BY toString(x) becomes LIMIT 5 BY x.

Delete injective functions of one argument inside uniq*() functions.