Remove instance logic for BinaryStorage and JsonStorage, part 1

1. part of #389
2. huge refactoring

Wox.Infrastructure/Storage/PluginSettingsStorage.cs

@@ -0,0 +1,20 @@
+using System.IO;
+
+namespace Wox.Infrastructure.Storage
+{
+    public class PluginSettingsStorage<T> :JsonStrorage<T> where T : new()
+    {
+        public PluginSettingsStorage()
+        {
+            var pluginDirectoryName = "Plugins";
+
+            // C# releated, add python releated below
+            var type = typeof (T);
+            FileName = type.Name;
+            var assemblyName = type.Assembly.GetName().Name;
+            DirectoryPath = Path.Combine(WoxDirectroy.Executable, DirectoryName, pluginDirectoryName, assemblyName);
+
+            FilePath = Path.Combine(DirectoryPath, FileName + FileSuffix);
+        }
+    }
+}