Add project files.

ModVersionChecker/managers/interfaces/IAppStatusManager.cs

@@ -0,0 +1,23 @@
+using ModVersionChecker.data.model;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ModVersionChecker.managers.interfaces
+{
+    public interface IAppStatusManager
+    {
+        List<AppStatus> Load();
+        void Save(List<AppStatus> appStatuses);
+        AppStatus? GetAppStatus(string appId);
+
+        void UpdateAppStatus(string appId, AppStatus appStatus);
+
+        bool DeleteAppStatus(string appId);
+
+        void ClearAll();
+
+    }
+}