Verify if non introspectable api should be skipped

[badcel]

There is the introspectable which signals that api is not part of the typelib because there are binding issues.

Perhaps the overall binding quality is increased if such api is implemented manually.

In a first step the generator can be used to output any api with the flag to get an overview which api would vanish and need to be implemented manually.

the next step would be to decide if the api should be ignored and if so whochbparts should be implemented manually and which not.