[x] Since the modm::this_fiber::yield() function is used so often it generates a non-inlined function anyways, so it would be nice to not have to deal with recursive include issues when including only <modm/processing/fiber/functions.hpp>.
[x] Would be nice to have a small polyfill library for when fibers are not implemented. For example, the timers could use a wait() method that yields the fiber until the timer has expired. This should block when fibers are not implemented.
The yak is not entirely shaved yet.
modm::this_fiber::yield()function is used so often it generates a non-inlined function anyways, so it would be nice to not have to deal with recursive include issues when including only<modm/processing/fiber/functions.hpp>.