Stunner - unify and fix properties in Process Documentation feature

The purpose of this Jira is to unify (add or remove) or fix displayed properties of all nodes in Process Documentation feature. It is necessary to do that, because properties are currently filtered, but in different way for certain nodes:

• There is missing Process Instance Description in process Overview.

• There are missing data assignments in all nodes (the nodes, which are supposed to have them).

• There is missing ConditionExpression property name (property value is there) in Conditional events.

• All properties don't contain new line characters when the real properties do.

• All nodes have two "Name" properties.

Also ensure simulation properties DO NOT appear on the current generated documentation (see comment):

• Start events have different properties then intermediate and end events. Start events has additional properties:
  • Min, Max, Mean, Standard Deviation, Time Unit, Distribution Type

• All tasks have additional properties:
  • Min, Max, Mean, Standard Deviation, Time Unit, Distribution Type

• Sub-processes contains additional properties:
  • Min, Max, Mean, Standard Deviation, Time Unit, Distribution Type, Staff availability, Working Hours, Cost per time unit, Currency, Time Unit, Distribution Type