Fixed names in ErrorHandler and enumeration of errors and removed explicit declaration of true or false in a CHECK

- changed variable names
- added breaks
- corrected a comment
- deleted explicit declaration of true/false in ifs
- fixed a bug in tests caused by passing the message by reference

Added comments in tests and changed a uint8_t to a uint16_t variable that counts the event action definitions in the eventActionStatusReport

Changed the way add action-definition function works after rechecking the standard and updated the corresponding tests as well as added documentation in those tests

Wrote better tests, fixed code format, added tests in main for testing purposes and added FailedStartOfExecutionError in ErrorHandler

Changed passing by value messages with pass by reference messages

and some test values that were wrong
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Ready to merge

MessageParser test remains, executeAction() test remains
and a full test with additions, deletions, enabletion, and disabletions :P

Standard's services completed

Added test basics