Nullables feature request

[DomenPigeon]

Could the library start using nullables in the source code? Otherwise its really hard to know what is initialized and what not or you need to check everything.

For example:

var container = new V1Container();
container.VolumeMounts.Add(new V1VolumeMount());

produces: Unhandled exception. System.NullReferenceException: Object reference not set to an instance of an object.