Avoid generic parameters in Chromatogram(Selection)

[Mailaender]

This is a gigantic API change with the aim of removing generic parameters from commonly used API which introduces numerous wildcard characters that should be avoided especially in method returns, and it causes many warnings because type checks fail. I see that the root cause is the way that Java generics are limited by not allowing implementing generic interfaces again, making lists with bound generic types read-only etc.

But it is also conceptually wrong to define a chromatogram by its peak (and which only differ slightly by peak model MSD) and not its scans, which are defining content. Doing both would probably create even harder to read/maintain code, so I try to put the generic types into lists instead and override the interfaces. This is still using generics but defined by inheritance, which is nearer to the legacy code.