Investigate doing an allocator

[burdges]

I think complex data structures like say Vec<T> can be done most easily using an allocator that wraps the standard allocator. It's seems needlessly complex to write a whole ZeroDropVec<T> just to avoid writing an allocator

[vks]

Actually there is already such a vector type on crates.io: cryptovec

[burdges]

Wonderful, thank you! Allocators do still sound interesting, but they can lead to mistakes easily too.

[burdges]

In fact, I'll leave this open since an allocator is still interesting for various reasons.