This change stubs out `KMXKeyboard.isRTL` and adds a unit test for RTL
with .js and .kmx (currently skipped) keyboards. Also change some code
to use `Keyboard` instead of `JSKeyboard` and stub out additional methods.
The RTL functionality will have to be completed when the necessary
extensions to the Core API are implemented (#15482).
Fixes: #15288
Test-bot: skip
Keyman makes it possible for you to type in any language
on Windows, macOS, Linux, iPhone, iPad, Android tablets and phones, and even
instantly in your web browser. Create keyboard layouts with Keyman Developer and
share them with the community in the keyboards
repository. The Keyman
Community have so far contributed
well over 1,000 keyboard layouts for over 2,500 languages!
License
Copyright (c) SIL Global.
Keyman is an open source project distributed under the MIT license.