Having the hooks, and the hook methods in the Kaleidoscope object means
we don't have to litter the definitions of the arrays around, and that
the hooks are more tied to the object. We pollute the global namespace
less, and having them in the object means that the hook helper functions
will not be optimized out if not used within the Kaleidoscope repo.
All in all, this saves us about 56 bytes of code, allows us to remove
some hacks, and pulls things that are closely knit, closer together.
While there, also changed the name of the `custom_handler_t` and
`custom_loop_t` types to `eventHandlerHook` and `loopHook` (both under
the `Kaleidoscope_` class), to better reflect what they are for.
Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>
Gergely Nagy