fix(@angular/cli): add unique user id as user parameter in GA

While, GA collects the user id, this cannot be used for reporting and filtering purpose. This can be

docs/design/analytics.md

@@ -38,6 +38,7 @@ PROJECT NAME TO BUILD OR A MODULE NAME.**
 <!--USER_DIMENSIONS_TABLE_BEGIN-->
 | Name | Parameter | Type |
 |:---:|:---|:---|
+| UserId | `up.ng_user_id` | `string` |
 | OsArchitecture | `up.ng_os_architecture` | `string` |
 | NodeVersion | `up.ng_node_version` | `string` |
 | NodeMajorVersion | `upn.ng_node_major_version` | `number` |

packages/angular/cli/src/analytics/analytics-collector.ts

@@ -60,6 +60,8 @@ export class AnalyticsCollector {
       // While architecture is being collect by GA as UserAgentArchitecture.
       // It doesn't look like there is a way to query this. Therefore we collect this as a custom user dimension too.
       [UserCustomDimension.OsArchitecture]: os.arch(),
+      // While User ID is being collected by GA, this is not visible in reports/for filtering.
+      [UserCustomDimension.UserId]: userId,
       [UserCustomDimension.NodeVersion]: nodeVersion,
       [UserCustomDimension.NodeMajorVersion]: +nodeVersion.split('.', 1)[0],
       [UserCustomDimension.PackageManager]: context.packageManager.name,

packages/angular/cli/src/analytics/analytics-parameters.ts

@@ -48,6 +48,7 @@ export enum RequestParameter {
  * @see https://support.google.com/analytics/answer/10075209?hl=en
  */
 export enum UserCustomDimension {
+  UserId = 'up.ng_user_id',
   OsArchitecture = 'up.ng_os_architecture',
   NodeVersion = 'up.ng_node_version',
   NodeMajorVersion = 'upn.ng_node_major_version',