[WFLY-3995] - Add tests for suffix option on size-rotating-file-handler

https://issues.jboss.org/browse/WFLY-3995 - Add tests for suffix option on size-rotating-file-handler

Added test for new suffix attribute on size-rotating-file-handler introduced in WFCORE-113.

Added basic operations test for 
* PeriodicRotatingHandler
* PeriodicSizeHandler
* SizeRotatingHandler