Inherit model properties from super classes #13

Is your feature request related to a problem? Please describe.
When you look to the last section: I wish that B had the id field as well. Currently, this doesn't seem to be the case. It can lead to reduction of boilerplate code and better maintainability.

I can imagine scenarios where you don't want to inherit these properties. In this case one could add an Annotation on the inheriting class like: @DoNotInheritModelProperties

Describe the solution you'd like
See above

Describe alternatives you've considered
See above.

Additional context
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class A extends Model {
@column
int id;
}

class B extends A {}
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