Add noetic support

[emersonknapp]

Closes #100

[codecov]

Codecov Report

Merging #290 (34c03b1) into master (b929773) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #290   +/-   ##
=======================================
  Coverage   93.06%   93.06%           
=======================================
  Files          10       10           
  Lines         404      404           
=======================================
  Hits          376      376           
  Misses         28       28           

Flag	Coverage Δ
unittests	93.06% <100.00%> (ø)

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Impacted Files	Coverage Δ
ros_cross_compile/platform.py	100.00% <100.00%> (ø)

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[zmichaels11]

run_e2e_test.sh for Foxy doesn't do anything on ARMHF. Should this be duplicated for Noetic?

The only test that is failing is from Noetic+ARMHF+Ubuntu

[emersonknapp]

run_e2e_test.sh for Foxy doesn't do anything on ARMHF. Should this be duplicated for Noetic?

Noetic does support armhf https://ros.org/reps/rep-0003.html#noetic-ninjemys-may-2020-may-2025 and release binaries for that platform
Foxy does not https://ros.org/reps/rep-2000.html#foxy-fitzroy-may-2020-may-2023 (tier 3 basically means no support)

The build problem here seems to be a bug in CMake < 3.17, when used in a 32 bit QEMU environment
https://gitlab.kitware.com/cmake/cmake/-/issues/20568
https://gitlab.kitware.com/cmake/cmake/-/merge_requests/5258 fixes it, but we don't get that newer release in Focal

build.ros.org uses https://hub.docker.com/r/osrf/ubuntu_armhf as a base image, which seems to not have this problem because they've baked in some custom QEMU version, so I am investigating using those base images to not reinvent the wheel.

Note https://build.ros.org/view/Nbin_ufhf_uFhf/job/Nbin_ufhf_uFhf__actionlib__ubuntu_focal_armhf__binary/18/consoleFull#console-section-3 for an example build

[emersonknapp]

This was implemented by #319