cu-min-baremetal 0.10.0

This is a minimal example/smoke test of a baremetal (no_std) application using cu29.
cu-min-baremetal-0.10.0 is not a library.

Cu-min-baremetal: a minimal / template for using Copper in a no-std environment

This is mainly a test for compiling copper on a no-std target (here arm64 MCUs) with no extra dependencies on a specific platform. Check out our examples like the rp2350 for an actual targeted platform.