A helper function for removing consecutive duplicates from a vector of complex types
Documentation
```rust use dedupby::dedupby;
let mut vec = vec![(1, 2), (2, 2), (3, 1)]; dedup_by(&mut vec, |a, b| { a.1 == b.1 });
assert_eq!(vec, [(1, 2), (3, 1)]); ```