Hall A Analyzer

Reading of "tdc.min", "tdc.max", "tdc.res" and "maxgap" was commented out in the OldVDCPlane database reader. While that matches the behavior of the old code, it might not generate the results that users expect. I'd say we make all those parameters optional database keys.

The question then is, how do we handle the situation where these parameters are set via the Set functions? Usually, Set functions override the database.. Which means we will have to add more code here to detect and remember Set function calls.