Eclipse eTrice 5.0.0

The following features have been added:

• Improve support for string messages. #87
• Improve debuggability of generated c code. #85
• Support platform specific implementation of main function. #75
• Simplify generator option 'mainName' to macro switch. #73

And these issues have been addressed:

• Breaking: Runtime compiler warnings. !47
• Behavior editor hangs during state machine layout. #83
• Inconsistent transition target handling in behavior diagram layout. #86