Allocator Benchmarks

[Tropix126]

We currently leverage talc, which is a fairly experimental memory allocator for embedded systems. Right now, we just use talc because it works and hasn't really raised any trouble. To my knowledge, talc isn't quite up to speed with some competing allocators, but i'm curious around how it stacks up against libc's malloc in libpros, as well as the performance of other allocator options (both performance-wise and efficiency-wise).

Potential benchmark contenders:

• linked_list_allocator/embedded_alloc (if we can get it to work)
• libc's malloc
• dlmalloc
• https://github.com/yvt/rlsf

[doinkythederp]

Having benchmarks for anything at all in the project would be great!