Make the commands of a specific kind of translation unit flyweight data

[TheRustifyer]

Refactor

Given this issue #135 , when implemented, most of the command line arguments and flags would be mostly the same for every kind of translation unit. That means that we can convert all of them into our flyweight data, effectively generating them once, and storing them once in the cache, making our program more memory efficient and the cache would need less data to r/w.