openkal-image 0.4.1

openkal-ld, openkal-run, openkal-tools and openkal-bind 0.4.1, for openkal 0.23.

The runner on macOS is built over openkal-macos 0.21.2: a sleep suspends the context (it was a spin of the processor for its whole length), and the monotonic granularity is the same at every start, so a snapshot of the initialisers is not declined for a measured difference. No change of its own otherwise.