Add release note for v1.4.0

Author: justinyoo

release-notes/v1.4.0.md

@@ -0,0 +1,18 @@
+## Release Notes ##
+
+Bug fixes and enhancements
+
+
+### Changes & Fixes ###
+
+* #476 Add delegate OpenApiHttpTriggerAuthorization to be more configurable #458 #434
+* #466 More DI feature for OpenApiConfigurationOptions #458 #430
+* #464 Update the version of NuGet packages for test projects
+* #463 Add more test cases for OpenApiHttpTriggerContext
+* #435 Support dynamic OpenApiHttpTriggerAuthorization #458 #434
+* #432 Support dynamic OpenApiConfigurationOptions #458 #430
+* #429 Fix null reference exception
+* #426 Distinct same types
+* #424 Only add unique openApiReferenceIds to the exported types #407
+* #415 Fixed invalid urls when include whitespace in "OpenApi__HostNames" option #411
+* #385 Fix: OAuth redirect url is invalid #384