Idea: Analyzer to verify api versions

[badcel]

Any GObject API could have an attribute since when it was introduced.

There could be an analyzer project which checks another attribute in the user code that defines per GirCore assembly which api version is allowed to be used.

If a newer api call is found a warning is raised.

This could benefit projects which depend on an older version of for example GTK and can't use newly introduced API. In this way they can use the newest GirCore version and be sure no exception is raised during runtime.

This could probably be a project independent of GirCore.