In order for interrupt-based wake-ups (as introduced by #1142) to work concurrently with time.Sleep, we need to make some per-board changes.

Previously, sleepTicks (the function used as an interface between the scheduler and the hardware timer) was defined to block until the timer completed, since there was nothing else to do. Now we need to change this so that it bails out when an interrup

Is your enhancement proposal related to a problem? Please describe.
Syscalls run on fixed-sized privilege elevation stacks. There is a hard limit on how much stack space a system call can use because of this. We don't have good data on how much stack syscalls actually use.

Describe the solution you'd like
I'd like to be able to use CONFIG_STACK_USAGE to be able to generate a report,

Resurrecting the second bullet from #1334

• Figure out how to fix favicon / logo more generally (here's a start https://github.com/tock/tock/tree/doc-updates)

MICROPY_PY_COLLECTIONS_ORDEREDDICT is set individually for every port. We should centralize it's use to py/circuitpy* settings. MICROPY_CPYTHON_COMPAT is an example of a setting that has already been centralized.

../../ports/unix/mpconfigport.h
102:#define MICROPY_PY_COLLECTIONS_ORDEREDDICT (1)

../../ports/nrf/mpconfigport.h
63:#define MICROPY_PY_COLLECTIONS_ORDEREDDICT       (1

Implement some test cases for standard memset()