Extract privet::AuthManager from privet::SecurityManager

BUG:25934385
Change-Id: I45fb7c79053a6009330b4debae1065266d1ce972
Reviewed-on: https://weave-review.googlesource.com/1735
Reviewed-by: Alex Vakulenko <avakulenko@google.com>
diff --git a/src/privet/privet_manager.h b/src/privet/privet_manager.h
index 3174ca0..95dbbb8 100644
--- a/src/privet/privet_manager.h
+++ b/src/privet/privet_manager.h
@@ -86,6 +86,7 @@
   provider::TaskRunner* task_runner_{nullptr};
   std::unique_ptr<CloudDelegate> cloud_;
   std::unique_ptr<DeviceDelegate> device_;
+  std::unique_ptr<AuthManager> auth_;
   std::unique_ptr<SecurityManager> security_;
   std::unique_ptr<WifiBootstrapManager> wifi_bootstrap_manager_;
   std::unique_ptr<Publisher> publisher_;