Code cleanup of Qyoto:
* Split qyoto.cpp into headers and source files
* Moved some function definitions to qyoto.h

Made Qyoto modular:
* Every module is defined through the QyotoModule struct.
It contains the name and pointers to the appropiate
resolve_classname and IsContainedInstance functions.
* Made the code more modular so that additional classes and methods are found from within the core Qyoto runtime without much additional work.

* In C# we just have to subclass SmokeInvocation and call Init_* from the static c'tor. This custom class is used instead of the original SmokeInvocation in the C# source files.
* Added example for QScintilla bindings.
* Added rest of Qyoto for easier testing & modifying.
* generate.pl for SmokeQscintilla might need a second run before generating proper code.

Still figuring out, why that happens.