Dynamic Modules

[da-h]

introduce child modules to make it possible to collect / choose / merge several modules dynamically

API Proposal:

• when loading modules, call them with moduleA(strargument,42) to initialize a module with user-given arguments
• in case there is only one string-argument, you can use alternatively moduleA.strargument instead of moduleA(strargument)`.
• in case an argument-id is given, the dynamic module loads another module as a child module, meaning that no events are registered globally, but only locally
• defaults can be overwritten by moduleA during registration phase
• internally, it uses load(..., eventbind=False, as_id='.') (see Allow reinstantiation of modules #17)
• enable local event objects and the possibility to register methods to local miniflask event objects only

Problems so far with this plan:

• how to define that at least a module of type x/with event y shall be called?
• can we combine register_default_modules with that? (See Redo register_default_module #22)