AECB - Avoid Empty Catch Blocks

Catch blocks should not be empty. Programmers frequently forget to process negative outcomes of a program and tend to focus more on the positive outcomes.

When 'Check parameter usage' option is on, this rule also checks, whether code does something with the exception parameter or not. If not, violation is raised.

You can also specify the list of exceptions, which should be ignored. For example, for `PropertyVetoException` catch block usually is empty - as a rule, the program just does nothing if this exception occurs.