Add unit test for already supported case (bool in param + bool return)
Add unit test for function with bool out and returning bool
Fix & add some acceptance tests of functions returning bool
Some acceptance tests added for functions with boolean output args
Unit test added for bool out ret num function
Implemented wrapper return variable declaration.
wrapper function return statement implemented
Fixed JUnit test template (bool in out/returning bool)
Add unit test for function with bool out param returning number
Unit test added with function with all boolean arg directions
Fix some acceptance tests with bool out functions and add case with
mixed params