BiHeap is a implementation of heap structure, to maintain the extreme values of a list of data.
BiHeap is the core data structure to control the two heaps.
Any data follows by Ord trait can be the type parameter of the BiHeap generic struct.
The Handle is a reference to the data in the heap.
Actually it doesn't describe the owner of the data, but the position of the data in the heap.
It means the data it points out would be 'miss', if you remove it from the heap.
The ViewMut is a mutable reference to the data in the heap.
It can be used to modify the data in the heap, peek it, reset it, or remove it.
Add some methods to make the BiHeap more convenient to use, like std::collections::BinaryHeap.
If you have some questions, welcome on https://github.com/CutieDeng/biheap/issues.