Remove pre-scaling of the bounds for the keyboard and its contents.
Calculate the scale factor based on the allocation and the desired width
and height of each keyboard, using the lower value of the horizontal and
vertical scale factors.
Apply scaling in the renderer and prepare to perform centering there.
- use G_DECLARE_ and G_DEFINE_ macros
- move all data into ClassNamePrivate
- use _get_instance_private()
This should not introduce any functional changes or breakage.
Skipped two classes (EekKeyboard and EekboardContextService) for now in
order not to break the build.
These two classes are used in some very funky WIP code that tries to
circumvent encapsulation.
(Funky code is in eekboard/key-emitter.c and eekboard/eekboard-context-service.c)
