alloc-stdlib vs alloc-no-stdlib vs lepton-mux

A dynamic allocator example that may be used with the stdlib

A dynamic allocator that may be used with or without the stdlib. This allows a package with nostd to allocate memory dynamically and be used either with a custom allocator, items on the stack, or by a package that wishes to simply use Box<>. It also provides options to use calloc or a mutable global variable for pre-zeroed memory

Allow multiple independent data to be serialized into a single stream and consumed by multiple threads