smart - dynamically dispatched smart pointers

This library lets you construct a smart pointer dynamically from one of our different pointers which implement shared ownership. It has both a threadsafe (SyncPointer) and non-threadsafe (SharedPointer) construct.

This is useful for when you need an API to dynamically be one of multiple different pointer types. This has a slight overhead (virtual calls), so you should not use this unless you know that's what you want.