attachable-slab-allocator vs ax_slab_allocator vs slab_allocator_rs

A high-performance, $O(1)$, Master-Slave slab allocator designed for `no_std` environments, kernels, and embedded systems. This library provides fixed-size memory management with RAII safety while remaining completely agnostic of the underlying memory provider.

Slab allocator for `no_std` systems. Uses multiple slabs with blocks of different sizes and a linked list for blocks larger than 4096 bytes

Slab allocator for no_std systems. Uses multiple slabs with blocks of different sizes and a buddy system allocator for blocks larger than 4096 bytes. Updated to latest nightly rust