fix(graphs.graph) Fixes bug introduced in 0.0.3. Data not set on components via data collection.

Fixes bug #88 introduced with component-mgr branch.
 
Data was not auto-set when adding new data directly through the DataCollection. Remedied this by registering the data collection int the constructor of the graph, instead of `data()` function.

Also added example with exact use-case that caused breakage.