Add recursive logging for test cases

Hi,

Many times we are using Test Cases as functions to group common functionality, or to define test case templates for different cases where only a few properties change.
This is working very well for us, but when a case which calls other cases fails, you can only see the history & log for the "primitive" steps (Test Request, REST Test Request and so on) but you can't see the history for a "Run TestCase" step which makes it very difficult to find out what went wrong.

Regards,
Mike