build: bump screenshot tool to Angular 6 (#11150)

Author: crisbeto

tools/screenshot-test/angular-cli.json

@@ -0,0 +1,66 @@
+{
+  "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
+  "version": 1,
+  "newProjectRoot": "projects",
+  "projects": {
+    "screenshot-test": {
+      "root": "",
+      "sourceRoot": "src",
+      "projectType": "application",
+      "architect": {
+        "build": {
+          "builder": "@angular-devkit/build-angular:browser",
+          "options": {
+            "outputPath": "dist",
+            "index": "src/index.html",
+            "main": "src/main.ts",
+            "tsConfig": "src/tsconfig.json",
+            "assets": [
+              "src/favicon.ico"
+            ],
+            "styles": [
+              "src/styles.css"
+            ],
+            "scripts": []
+          },
+          "configurations": {}
+        },
+        "serve": {
+          "builder": "@angular-devkit/build-angular:dev-server",
+          "options": {
+            "browserTarget": "screenshot-test:build"
+          },
+          "configurations": {}
+        },
+        "extract-i18n": {
+          "builder": "@angular-devkit/build-angular:extract-i18n",
+          "options": {
+            "browserTarget": "screenshot-test:build"
+          }
+        },
+        "lint": {
+          "builder": "@angular-devkit/build-angular:tslint",
+          "options": {
+            "tsConfig": [],
+            "exclude": []
+          }
+        }
+      }
+    },
+    "screenshot-test-e2e": {
+      "root": "",
+      "sourceRoot": "",
+      "projectType": "application"
+    }
+  },
+  "defaultProject": "screenshot-test",
+  "schematics": {
+    "@schematics/angular:component": {
+      "prefix": "app",
+      "styleext": "css"
+    },
+    "@schematics/angular:directive": {
+      "prefix": "app"
+    }
+  }
+}