Traits to replace or supplement the alloc module in `no_std`.
Defines traits, similar to `alloc::GlobalAlloc`, that can be implemented to defined different
kinds of allocators. Unlike the standard library one they do not presume global uniqueness and
static lifetime of the memory resource provider. In return, the allocators are not required to
implement the `Sync` bound and can easily be built without operating system support to be
usable.
There are additional independent crates with additional abstractions on-top:
* [`static-alloc`]: A simple allocator drawing from a memory region statically
embedded within the compiled binary.
* [`without-alloc`]: A set of data structures (`Box`, `Vec`, `Rc`, ...) that can
be allocated from the implementors of the traits defined here.
[`static-alloc`]: https://crates.io/crates/static-alloc
[`without-alloc`]: https://crates.io/crates/without-alloc