feat(rendering): gate rendering based on valid version identifiers (#4614)

* create VersionPragmaFilter component

* use VersionPragmaFilter in BaseLayout

* tighten version idenitifier constraints

* handle case where user specifies a valid `swagger` and `openapi` field

* add traceable class names for each message

* add tests

* linter fixes!

* UNRELATED CHANGE: remove travis short-circuit

* add bypass switch to VersionPragmaFilter

src/core/plugins/oas3/helpers.js

@@ -6,7 +6,7 @@ export function isOAS3(jsSpec) {
     return false
   }
 
-  return oasVersion.startsWith("3")
+  return oasVersion.startsWith("3.0.")
 }
 
 export function isSwagger2(jsSpec) {
@@ -15,7 +15,7 @@ export function isSwagger2(jsSpec) {
     return false
   }
 
-  return swaggerVersion.startsWith("2")
+  return swaggerVersion.startsWith("2.0")
 }
 
 export function OAS3ComponentWrapFactory(Component) {