DataIO -unfinished

First attempt to a io interface.
Fixxed class<CellPattern> - return of var<CellPattern.m_sName>
Fixxed class<DataIO> - output-stream (writing of databases)
DataIO Finished

Finished Interface for persitent saving of the patterns. I think there's
still a little bug in it, but I haven't exactly figured out whats
wrong...