get_next_line

A project in School 21.

Thinking about whether or not the buffer should be null-terminated.
UPD on Nov 1st - yup, definitely should. It makes a bunch of things much easier to implement.

Nov 5th - ok, so the program takes its shape now. I only need to write a couple of functions and that’s it. Time for a debug 🥲

Seems like Tripouille tester doesn’t check for EOF!