Store unboxed DST objects
Provides efficient list when the elements don't need to get resorted for DST types.
Trait object ```rust use unsized_stack::UnsizedStack; use std::fmt::Debug;
let mut stack = UnsizedStack::
str ```rust use unsized_stack::UnsizedStack; use std::fmt::Debug;
let mut stack = UnsizedStack::
slices ```rust use unsized_stack::UnsizedStack; use std::fmt::Debug;
let mut stack = UnsizedStack::<[i32]>::new(); stack.push([1, 2], |item| item as _); stack.push([3, 4], |item| item as _); stack.push([5, 6], |item| item as _); dbg!(stack); // Print stack = [[1, 2], [3, 4], [5, 6]] ```