ST6RI-628 Update implementation for 2022-12 baseline

[seidewitz]

This pull request updates the implementation for the 2022-12 metamodel baseline. It includes the following changes.

Abstract Syntax

1. Element
   • This metaclass is now abstract.
   • The (non-derived) shortName and name properties have been renamed to declaredShortName and declaredName.
   • The (derived) effectiveName property has been renamed to name, and a new, derived shortName property has been added. The default derivation for these properties is to just have the same value as declaredName and declaredShortName.
2. Relationship
   • This metaclass is now abstract.
3. Dependency
   • In the normative abstract syntax, this metaclass has been moved from the SysML Systems package to the KerML Root package. However, this has no effect on the flat SysML.uml model.
4. Feature
   • The name and shortName properties are derived as being the same as the declaredName and declaredShortName, unless both are empty, in which case they are derived together as being the same as the name and shortName of the result of the namingFeature() operation (if that is non-null).
   • The namingFeature() operation is unchanged. Subclasses of Feature that have different effective name rules overide only the namingFeature() operation, so they all inherit the new derivation computation for name and shortName.

A large number of additional constraints with OCL specifications have been added to the SysML abstract syntax. These are available in the SysML.uml and SysML.ecore files.

Concrete Syntax

1. Elements and Relationships. – Since Element and Relationship are now abstract, the bare element and relationship notations have been removed from KerML.
2. Dependencies. – Since Dependency is now part of the KerML abstract syntax, a dependency notation has been added to KerML. It has the same syntax as the already existing SysML notation (except for the additional ability to include ownedRelatedElements in its body, as for any KerML relationship body).

Model Library

1. KerML and SysML – The reflective KerML and SysML models have been updated for the abstract syntax changes.

Other Fixes

1. Revised DependencyImpl::getTarget to add ownedRelatedElements at the end of the returned list.
2. Fixed the display of filtered Import relationships in the outline tree view.

[himi]

I modified the visualizer to show "effective" names. For example,

part <'P-0'> p0 {
  attribute <'A-1'> a1;
  part <'Part-2'> part2;
}

part p1 :> p0 {
    attribute :>> a1;
    part :>> part2;
}

enum def E0 {
  <'Enum 0'> e0;
  <'Enum 1'> e1;
}

enum def E1 :> E0;

is rendered as:

with SHOWINHERITED style.