Function next_multiple_of 

const fn next_multiple_of(lhs: i64, rhs: i64) -> i64

Computes the next multiple of rhs that is greater than or equal to lhs.

Taken from: https://github.com/rust-lang/rust/blob/eff958c59e8c07ba0515e164b825c9001b242294/library/core/src/num/int_macros.rs