chore: merge master into feature-kmcompx A17S9

chore(developer): move cassert ref to filesystem.cpp

refactor(common): move core baseline tests into common

chore(developer): publish all required npm modules

feat(core): use kmc to build kmx tests

feat(developer): kmc-kmn

auto: increment master version to 17.0.80

docs(linux): Update common questions

- add Ubuntu 18.04 as being last supported in Keyman 16
- clarify that km-config needs to be started from command line
  in order to disable error reporting

docs(linux): Update minimum required Ubuntu version

chore(linux): Revert "Run and ignore autopkgtests on s390x" 🍒

Co-authored-by: Darcy Wong <darcy_wong@sil.org>

This makes it possible to run the common/test/keyboards build.sh and
makes all the baseline keyboards available as a build artifact (but
currently only in .kmx, not .kmp; this may come as a future update.)

Decided to use the name `baseline` for this set of tests. They can be
used by any project in the repo now. Tests will be treated as shared,
and not modified (except in the case of a buggy test).

* Moves .kmn files, add `&NAME` line (don't use meson templating for
  these files)
* Generates reference .kmx files using kmcomp for use as a baseline with
  kmcmplib (kmc) tests, and for linux tests
* Updates references in core, kmcmplib, and linux builds
* Renames all the .kmn / .kmx to use a standardized, clean name format
  (this was needed for building packages in the core tests)

auto: increment master version to 17.0.79

refactor(android/engine): Make KMKeyboardJSHandler a normal class 🛋

chore(linux): Remove python3-raven dependency

chore(android): Merge remote-tracking branch 'origin/master' into refactor/android/cleanup-jshandler

auto: increment master version to 17.0.78

chore(common): use mac /usr/bin/stat rather than homebrew version

auto: increment master version to 17.0.77

Now that we no longer support Ubuntu 18.04 Bionic we can remove
the python3-raven dependency.

This reverts commit 2f716b3e.

(cherry picked from commit 7a9f366c)

refactor(android/engine): Consolidate dispatchKey 🛋

chore(linux): Run and ignore autopkgtests on s390x 🍒