make SimpleApiClient protected

Author: Jasmine

src/GitHub.VisualStudio/Base/MenuBase.cs

@@ -20,9 +20,10 @@ public abstract class MenuBase
 
         protected ISimpleRepositoryModel ActiveRepo { get; private set; }
 
-        ISimpleApiClient simpleApiClient;
+        protected ISimpleApiClient simpleApiClient;
+
         [AllowNull]
-        public ISimpleApiClient SimpleApiClient
+        protected ISimpleApiClient SimpleApiClient
         {
             [return: AllowNull]
             get { return simpleApiClient; }