Remove instance logic for BinaryStorage and JsonStorage, part 1

1. part of #389
2. huge refactoring

Plugins/Wox.Plugin.Program/ProgramCacheStorage.cs

@@ -5,10 +5,8 @@ using Wox.Infrastructure.Storage;
 namespace Wox.Plugin.Program
 {
     [Serializable]
-    public class ProgramCacheStorage : BinaryStorage<ProgramCacheStorage>
+    public class ProgramIndexCache
     {
         public List<Program> Programs = new List<Program>();
-
-        protected override string FileName { get; } = "ProgramIndexCache";
     }
 }