Top 20 NuGet ArrayPool Packages

Includes PooledList, PooledDictionary, PooledSet, PooledStack, and PooledQueue: based on the corresponding collections in System.Collections.Generic, but using ArrayPool internally to reduce allocations, and with some API changes that allow for better compatibility with Span.
Provides IDisposable leases for Microsoft's ArrayPool class from the System.Buffers package.