Several keys that are defined in `winuser.h` were added after Keyman
defined its vkeys and so are not documented in the Keyman docs. This
change adds underscores before and after to mark them as being internal.
It's still useful to have them in the source code because it makes the
mapping between Linux keys and Keyman vkeys easier.
Addresses code review comment.
This change tries to map all keys to corresponding Core VKeys so that
Core sees them and can reset the context if necessary. Previously we
had 0 for most of the keys, which meant that we didn't send them to
Core but instead returned right away. While this doesn't directly fix
the failing user tests described in #12968, it fixes the original tests
in #11172.
Closes: #12968
This will allow to use the array in unit tests.
# Keyman Conventional Commit suggestions:
# - Consider appending the text ". Fixes#5613" to your commit message.
