[Feature] Handle classes with same name

[ML-Marco]

Is your feature request related to a problem? Please describe.

If the codebase has classes with the same name but different packages, Sprindoc only adds the Schema of the first one to components.

Describe the solution you'd like

I'd like to have a mechanism, similar to how operation name generation works, where the name of the schema of an identical named class is made unique.

Describe alternatives you've considered

I'm aware of springdoc.use-fqn, however this affects all names of all schemas. These longer names result in longer class names when the definition is used by a code generator. It would be beneficial if name collisions are only avoided when needed.
Additionally it can be a big effort if you have to enable use-fqn in an already existing project.

Additional context

Would you accept a pull request for this kind of feature? Furthermore it would be nice to log a warning if such a case is detected and no collision avoidance exists.

[DmitrySboychakov]

There is related PR in swagger-core.
It fixing the problem with appending numeral suffix (isn't ideal I know)
swagger-api/swagger-core#4772
Please look at it, if you have any better ideas - I can rework my patch.

[bnasslahsen]

@ML-Marco,

Please feel free to propose a PR.
Just make sure it doesn't create a lot of regressions on existing projects/tests :)