Added support for Resource Properties

This provides support for:
 - [DeletionPolicy](http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-attribute-deletionpolicy.html)
 - [DependsOn](http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-attribute-dependson.html)
 - [MetaData](http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-attribute-metadata.html)
 - [UpdatePolicy](http://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/aws-attribute-updatepolicy.html)

In addition it address issue: seandst/cfn-pyplates#4