[DUG] Storing extra data with a component

[Phil Scadden]

> i.e. by their parent object. How will descending your TCollection class
> help?

Descending TMycomponent so type of TCollection is explicit. Actually too 
much pain in this so instead of doing my own stream storage. Should have
gone that way from start.

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Phil Scadden, Institute of Geological and Nuclear Sciences
764 Cumberland St, Private Bag 1930, Dunedin, New Zealand
Ph +64 3 4799663, fax +64 3 477 5232