3.5.3: inconsistent features of inEventQueue among different generatormodels

[tangele]

ref https://github.com/Yakindu/statecharts/pull/2724 version: https://github.com/Yakindu/statecharts/commit/0a9647ebb4ca844c4aca42e1734ba30b71b2ef99

release notes say: To enable it, set the inEventQueue option of the GenerationOptions feature to true.

For c:

        feature GeneratorOptions {
            inEventQueue = true
        }

For `c++'

        feature GeneratorOptions {
            inEventQueue = true
        }

For java:

        feature GeneralFeatures {
            inEventQueue = true
        }

[tkutz]

1. The documentation is correct for Java and C++, but seems to be missing for C.
2. The release notes are also correct (now).
3. In Java, all kinds of options are grouped in GeneralFeatures, so for me it makes sense to put inEventQueue there.
4. In C++, it is called GeneratorOptions, so that is the reason why it is also called so in C.

My suggestion is to close this issue and create two different one: (1) update documentation for C code generation => #2729 (2) cleanup generator options when jumping to version 4 => #2730