Refactored KeyDataLoggers unit test class in prep for further testing.
Refactored MouseDataLoggers unit test class in prep for further testing.
Clean code up a bit in KeyDataLoggers class.
Moved data logger implementation tests to net.zeddev.zedlog.logger./impl
Fixed KeyDataLoggers and MouseDataLoggers unit test references in Makefile.
Fixed missing imports in KeyDataLoggers and MouseDataLoggers test classes from previous relocation.
Added stub unit test classes for LogEntry and LogEvent classes.
Fixed reference to KeyDataLoggers and MouseDataLoggers unit test in TestSuite.