Support for multiple reports with different granularity (file, class, method)

[victorgveloso]

Added 2 csv optional reports (enabled by default). Each report contains test smells that affects a different granularity.

• File is the old/default report,
• Class is class-only reports, e.g. Lazy Test, Default Test, and Constructor Initialization
• Method is for test smells that affects methods, e.g. Assertion Roulette, Empty Test, and Conditional Test Logic

Tests included

[victorgveloso]

For optional reports configuration check properties file at https://github.com/victorgveloso/TestSmellDetector/blob/master/src/resources/test-smells.properties