Reduce excessive log messages from PluginRegistry

Moved _logger.Info call into if statement where it should be

Author: AndisGrossteins

src/PluginRegistry/PluginRegistry.cs

@@ -155,10 +155,10 @@ private void LoadPluginAssembly (string dllName, string interfaceName)
 
         foreach (var type in types)
         {
-            _logger.Info($"Type {type.FullName} in assembly {assembly.FullName} implements {interfaceName}");
-
             if (type.GetInterfaces().Any(i => i.FullName == interfaceName))
             {
+                _logger.Info($"Type {type.FullName} in assembly {assembly.FullName} implements {interfaceName}");
+
                 var cti = type.GetConstructor(Type.EmptyTypes);
                 if (cti != null)
                 {