v0.14.0

• Fix collision between operation helper for Echo.Wait and generated mixin Operations.WaitOpertation
• REST endpoints: ensure enum values are received as string values
• REST endpoints: ensure full body responses
• Rest endpoints: enforce lower-camel-cased field names in request bodies and query params
• fix windows binary upload
• fix go vet/lint warnings
• pin Go version in CI
• fix release asset version
• add Code of Conduct
• add SECURITY.md