[Dvermetten]

This adds two new suites / generators using the new schema:

• GKLS Add GKLS #78
• Shape Optimization with CFG Add Heat exchanger design problem #72

[Dvermetten]

@kvdblom @olafmersmann What should we do with this PR, are these examples still accurate with the updates to the schema?
The examples we added here also don't yet seem to be in the main yaml file, should we at least merge them in?

[kvdblom]

@Dvermetten @olafmersmann

• I assume we can check the concrete examples to make sure they match the schema changes.
• Pretty sure the template would need some work; Perhaps we can make a separate PR for it if we still want it?