Add ability to generate Ahead of Time (AOT) compiled Validation Functions

[amast09]

zod's performance is currently lagging behind some of the other runtime data validations libraries that are out there.

Other than improving the performance in general, it would also be awesome to have the ability to generate Ahead of Time compiled validation functions in order to improve performance similar to what the Typebox library offers in order to improve performance for validations that run in performance critical code.