Enum default values should not be forced.

[iocanel]

Currently in dekorate we have almost 18 enums. Those enums are used in the dekorate annotations. In most cases the annotations define the default value and the rest of the code just applies whatever value is found in the config objects. This works fine for dekorate itself but has issues with downstream projects. Why? because a dekorator applying the default or overriden value will always be applied possibly clashing with dekorators registered downstream.

For example, with the given code we always register a dekorator that sets the image pull policy, wether the user selected a non default value or not. This is breaking downstream projects that use their own config model.

What should we do? Only register decorators when non default values are selected.

Note: This issue most probably applies to other types too.