Don't throw warning when binding to a property/field of a non-context class

[Christian Oeing]

Right now the following warning is thrown:

Expected LookLayerContext.contourProperty in context of type 'SuprStijl.Mirror.Modules.Looks.Contexts.LookLayerContext' No data provider found for path 'Clothing.Config.Contour', value will never change.

This is meant as a hint when the data property field behind a property is missing or has a wrong name. But there may be the case where we have pure data classes that are accessed by a data binding, e.g.:

Context - Data Class -- Value A -- Value B

The data class is meant to be immutable, i.e. it is swapped completely and its single values don't change separately.

[Christian Oeing]

Check if parent node is a Context