MM-10007 Send an admin and regular WS events when a user is updated (#8588)

* Add user.DeepCopy() function

* Add omit admins/non-admins to WS broadcast and use for updating users

* Updates per feedback and adding unit test for ShouldSendEvent

app/apptestlib.go

@@ -31,6 +31,8 @@ type TestHelper struct {
 	BasicChannel *model.Channel
 	BasicPost    *model.Post
 
+	SystemAdminUser *model.User
+
 	tempConfigPath string
 	tempWorkspace  string
 	pluginHooks    map[string]plugin.Hooks
@@ -143,6 +145,14 @@ func (me *TestHelper) InitBasic() *TestHelper {
 	return me
 }
 
+func (me *TestHelper) InitSystemAdmin() *TestHelper {
+	me.SystemAdminUser = me.CreateUser()
+	me.App.UpdateUserRoles(me.SystemAdminUser.Id, model.SYSTEM_USER_ROLE_ID+" "+model.SYSTEM_ADMIN_ROLE_ID, false)
+	me.SystemAdminUser, _ = me.App.GetUser(me.SystemAdminUser.Id)
+
+	return me
+}
+
 func (me *TestHelper) MakeEmail() string {
 	return "success_" + model.NewId() + "@simulator.amazonses.com"
 }