Validation: Resource property cannot set readOnly properties

[wbingli]

Currently, if set a value for a readOnlyProperties, this will be silently ignored. We should have validation to enforce this validation.

[PatMyron]

catching some of these in cfn validate because readOnlyProperties should never overlap with writeOnlyProperties or createOnlyProperties or required: https://github.com/aws-cloudformation/cloudformation-cli/pull/663 https://github.com/aws-cloudformation/cloudformation-cli/pull/668

still not sure why CloudFormation diverged from readOnly and writeOnly as defined in JSON schema itself