feat(developer): support `store(&version) '17.0'`

Fixes #9541.

Also adds version 16.0 support to the kmcmplib compiler constants, and
unit tests for both versions. Does not add any support for automatic
version feature detection, because that forces an inverted dependency on
the touch layout compilation phase (done in kmc-kmw), which would be a
significant refactor. This may be something we need to support in the
future.