Hotfix/gtl visualization

[arg0n1s]

Introduced some fixes to provide a basic graphical visualization of GT rules and patterns.
Note: Some advanced features are still missing (e.g., attribute conditions, injectivity constraints, parameters).

[maxkratz]

I've fixed the plugin.xml_gen files (removed them + added these files to the gitignore).

[maxkratz]

I found that the visualization of more complex patterns/rules does not contain the same information as in the respective IBeX v1 tests. See for example the test case ClassMultipleInheritance-GT, pattern pattern findClassByQualifiedName(packageName: EString, className: EString) refines findClass below.

If I understand it correctly, attribute constraints and parameters are missing. Do we plan to visualize them (so this is kind of a bug) or do we just want a simpler visualization (as it is right now)?

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IBeX 1:

IBeX 2:

[maxkratz]

I found that the visualization of more complex patterns/rules does not contain the same information as in the respective IBeX v1 tests. See for example the test case ClassMultipleInheritance-GT, pattern pattern findClassByQualifiedName(packageName: EString, className: EString) refines findClass below.

If I understand it correctly, attribute constraints and parameters are missing. Do we plan to visualize them (so this is kind of a bug) or do we just want a simpler visualization (as it is right now)?

I misread the PR description, sorry. I suggest we merge this PR and open an issue after merging the whole IBeX v2 branches (see eMoflon/emoflon-ibex#424) to support the more advanced visualizations (like attribute constraints, etc.).

[maxkratz]

As I wrote in my previous comment, I'm fine with merging this PR.