prefixed potency test case names with /potency/
added fprintf sample to potency test cases
fixed tab spacing on some comments
deleted old test case of no value
improved grammar in a comment
added a sample to show usage of set up and tear down functions
updated README.md to reflect updated samples code
removed old test case
added escaping of version string in all output formats
increased width between test case name and description when listing test cases from 30 to 50
updated potency internal unit tests
Merge branch 'feature/RL_update_samples' into develop