Update better code hub config.

.bettercodehub.yml

@@ -1,8 +1,5 @@
 exclude:
-- /Frameworks/.*
-- /MQTTnet.TestApp.NetCore/Program.cs
-- /Tests/MQTTnet.TestApp.NetFramework/.*
-- /Tests/MQTTnet.TestApp.UniversalWindows/.*
-component_depth: 1
+- /Tests/.*
+component_depth: 2
 languages:
 - csharp