Automatic triggering of transformations and validation checks

To ensure that DMW data is always as up-to-date as possible:

1. For each transformation, click the Add or Remove Source Models icon and select Can Trigger for each source model.
2. When adding or modifying each validation check batch, select Can Be Triggered.

Each time data is loaded into an input data model, it triggers the transformation to the next target model, and then the next, and so on to all target models. In addition, all validation check batches are executed as soon as data is loaded into the model they read from.