Only calculate features for instances before cutoff time

[kmax12]

Currently, if no instance ids are provided to ft.dfs or ft.calculate_feature_matrix, we calculate features for all instances in the target entity.

However, if a single cutoff time is provided, we only select the instances where the time index is less than or equal to the cutoff time.

The current logic that selects all instance ids is here:
https://github.com/Featuretools/featuretools/blob/72ac0daa7bd60936eeb563b2c352c9a6631f50fc/featuretools/computational_backends/calculate_feature_matrix.py#L142

To fix this issue we have to add logic that checks if the target entity has a time index and removes instances from after the cutoff time.