The BehaviorSession base class has methods that expect the trials table to have a column "change_time". However the VBN trials table has a column with a different name. This PR adds properties to the TrialTable class so that these properties can be accessed instead of the data frame columns so that a column with a different name can be accessed.
Addresses #2490
The BehaviorSession base class has methods that expect the trials table to have a column "change_time". However the VBN trials table has a column with a different name. This PR adds properties to the TrialTable class so that these properties can be accessed instead of the data frame columns so that a column with a different name can be accessed.