* Rework timer_queue and monotonic architecture
Goals:
* make Monotonic purely internal
* make Monotonic purely tick passed, no fugit involved
* create a wrapper struct in the user's code via a macro that then
converts the "now" from the tick based monotonic to a fugit based
timestamp
We need to proxy the delay functions of the timer queue anyway,
so we could simply perform the conversion in those proxy functions.
* Update cargo.lock
* Update readme of rtic-time
* CI: ESP32: Redact esp_image: Too volatile
* Fixup: Changelog double entry rebase mistake
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Co-authored-by: Henrik Tjäder <henrik@tjaders.com>
Some hals implement traits for embedded-hal version `=1.0.0.alpha.<not 9>`, which is
explicitly incompatible with the version `=1.0.0.alpha.9` which embedded-hal-async
depends on. Making the dependency optional allows downstream projects to include
rtic-monotonic without requiring that all of their other libraries also implement
that specific version of embedded-hal 1.0
