perf(@angular-devkit/build-angular): disable showCircularDependencies by default

Change the default of this flag to disabled by default as this is a caused of rebuild performance degradation for large projects.

BREAKING CHANGE

The server and browser builder `showCircularDependencies` option default value has been changed from `true` to `false`.

Author: alan-agius4

packages/angular_devkit/build_angular/src/browser/schema.json

@@ -290,7 +290,7 @@
     "showCircularDependencies": {
       "type": "boolean",
       "description": "Show circular dependency warnings on builds.",
-      "default": true
+      "default": false
     },
     "buildOptimizer": {
       "type": "boolean",

packages/angular_devkit/build_angular/src/server/schema.json

@@ -187,7 +187,7 @@
     "showCircularDependencies": {
       "type": "boolean",
       "description": "Show circular dependency warnings on builds.",
-      "default": true
+      "default": false
     },
     "namedChunks": {
       "type": "boolean",