CloudFormation Template Schema 18.5.0 + Template Schema improvements (#…

…129)

aws-cloudformation/cloudformation-template-schema#32

https://github.com/aws-cloudformation/aws-cloudformation-template-schema/blob/master/docs/tool/instructions.md

as described in #76

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Template Schema improvements:

DeletionPolicy and UpdateReplacePolicy support:
aws-cloudformation/cloudformation-template-schema#46
more AWS hosted transforms and Hooks and Rules template sections:
aws-cloudformation/cloudformation-template-schema#47
linking resource type reference documentation on Type as well as logical ID:
aws-cloudformation/cloudformation-template-schema#48