fake resolution of timelines and sequences

[ichthyo]

As we don't have a real resolution engine, we're using a faked or simulated resolution for now. (presumably this will be more than sufficient to get us well into alpha). Consequently, to make the session/model facade work as planned, we need a faked resolution of queries for sequences and timelines, with the following properties

• an empty query (i.e. just the type is bound) fill fetch the default sequence/timeline from the session implementation
• an query specifying a name-ID will iterate over the sequences/timelines in the session implementation and pick a matching one.

Besides that, we need a mechanism which automatically registers an sequence or timeline element within the current session implementation. It might be that this latter mechanism is there to stay (while the remainder of this task is just an throwaway).

Hint: all the required building blocks are already there in fake-configrules.hpp

[ichthyo]

factored out the element-registration mechanism into a lib module. See corresponding unit-test
Now targeting creation of a simple timeline and sequence

[ichthyo]

bumpb up... one of the next things to settle

[ichthyo]

basically working now, as demonstrated by the passing SessionElementTracker_test