Refined proc_3_1_bool_out.pls test output - no need of double prefix
Helper method added for direction name abbreviations
Add support for boolean output arguments in procedures
Add test for proc with boolean in + non-boolean out parameters.
Refactored Sp Command creation via builder defined in Test Factory
Refactored OracleBooleanSpCommandTest - moved command setup inside tests
(for better clarity of test context)
Add JUnit test for PL/SQL proc with boolean out AND boolean in param