#6 C++20 update of now useless function

> i need to learn how to read > i just noticed https://en.cppreference.com/w/cpp/header/bit contains CLO and that function in your bit_ops you needed for sth and that you called "msb", which they called bit_ceil, it does the same thing >it's in the freestanding C++, perhaps i'll remove the "msb" in gplib along with the bit_ops and leave the endian shenanigans in a renamed header tomorrow if i don't forget