Proxy-based, deep observable state-model of signaling data-nodes

Another attempt of implementing observable and signaling state.

The main features of this one are ...

• direct manipulation of deep observable data-structures like assigning to or deleting from an observable state without the help of additional setter/getter functionality.

• signaling/dispatching of following event-types ... put, patch, delete and of cause statechange.

• EventTarget functionality at each signaling/dispatching data-node throughout the entire »Signaling State Model«.