CRD validation needs to be removed for resource requests/limits

[jessesuen]

Since adding resource validation for pod template, it seems that removed the ability to set numeric values for cpu/memory. This caused kubernetes to reject creations of rollouts with floating point/integer cpu/mem requests/limits. We need to remove this validation. I added a convenience function to do this, which just needs to be add more for resource cpu/memory.

removeValidataion(&un, "spec.template.metadata.creationTimestamp")