GRAILS-5810 - support the “-https” arg to test-app to run functional tests over https.

Author: ldaley

scripts/_GrailsTest.groovy

@@ -334,7 +334,7 @@ integrationTestPhaseCleanUp = {
  */
 functionalTestPhasePreparation = {
     packageApp()
-    runApp()
+    testOptions.https ? runAppHttps() : runApp()
 
     prevAppCtx = binding.hasProperty('appCtx') ? appCtx : null
     appCtx = ApplicationHolder.application.mainContext