Amazon Api gateway integration support

[jlopezjuy]

Hello, i have problem trying to combine openapi-yaml because many of yaml files have this configuration:
ecurity:
- bearerAuth: []
x-amazon-apigateway-integration:
uri: "lambda blah blah blah"
passthroughBehavior: "when_no_match"
httpMethod: "POST"
timeoutInMillis: 29000
type: "aws_proxy"

and the error is:
swagger-combine openapi.yaml -o combinedSchema.yaml
Error parsing /sure-get.yaml
bad indentation of a mapping entry at line 22, column 5:
x-amazon-apigateway-integration:

[Wilcko]

I ran into a similar issue a few weeks ago.
The security definitions have to match exactly. Word for word or it will fail to merge them.