Make osk-stub an input method
Good tooling for debugging input related issues like squeekboard#298 (closed) helps so lets have a pure C (builds fast, no wrangling with cargo) input method with the only purpose to show some debugging information (it also brings osk-stub closer to its goal to be helpful in tests by tracking requests on input-method wayland protocol and dbus). This helped a lot for phoc!328 (merged) and can be extended in the future to provide even more information.
While at that I
- made building the tools conditional (cuts down on build time)
- made osk-stub conditional (so people don't install it by default)
- folded in some cleanups at the front of the series
- added a fold animation in the spirit of squeekboard#116
Signed-off-by: Guido Günther guido.gunther@puri.sm