fn parse_scanners(input: &String) -> Vec<Vec<(isize, isize, isize)>>ⓘNotable traits for Vec<u8, A>impl<A> Write for Vec<u8, A> where A: Allocator,
impl<A> Write for Vec<u8, A> where A: Allocator,
Split the input on the double line breaks between scanner inputs, and for each then builds the list of relative beacon co-ordinates.