also, flatten the workspace into a single crate. I forget what the original reason for the workspace
was -- I think it was added because `cargo t -p testsuite` is nicer than running
`cargo t --test $filename` N times. However, a single crate removes the need to repeat the list of
dependencies in `testsuite/Cargo.toml`
also, document the two sets of tests included with the template and how to run them in the README
file
* bump defmt to v0.3
remove Cargo features which are no longer needed
* remove `timestamp!`
it's no longer mandatory and a monotonic counter does not add much value given that `defmt-rtt`
works by disabling interrupts so one won't see logs out of order anyways (which would the case for a
lock-free multi-channel `Logger`)
* use println! in most the examples
so that all examples print something when `DEFMT_LOG` is unset
* make overflow example terminate in less steps
also include an estimate of the stack pointer to show the stack grows downwards towards the RAM
boundary
datdenkikniet
Emil Fresk
Jorge AparicioandGitHub
Urhengulas
Jonas Schievink