This sidesteps a deadlocking issue most commonly encountered when
entering SystemStarter, as multiple tasks are attempting to access
resources on the same RedSea file system.
Give LibC malloc() and calloc() an array of 16 mem_tasks each, for now.
We will probably be removing this, in favor of giving each non-HolyC
library its own static memory pool, as we will do with stb_truetype.h in
a forthcoming commit.