base functionality to create aws resources

contrib/terraform/aws/terraform.tfvars

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+deploymentName="test-kube-deploy"
+
+numControllers="2"
+numEtcd="3"
+numNodes="2"
+
+volSizeController="20"
+volSizeEtcd="20"
+volSizeNodes="20"
+
+awsRegion="us-west-2"
+subnet="subnet-xxxxx"
+ami="ami-32a85152"
+securityGroups="sg-xxxxx"
+SSHUser="core"
+SSHKey="my-key"
+
+master_instance_type="m3.xlarge"
+etcd_instance_type="m3.xlarge"
+node_instance_type="m3.xlarge"
+
+terminate_protect="false"