Fleshed out the table storage service and started syncing logic

Habitica.Todoist.Integration.Model/Habitica/Enums/ScoreAction.cs

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+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Habitica.Todoist.Integration.Model.Habitica.Enums
+{
+    public enum ScoreAction
+    {
+        Up = 0,
+        Down = 1
+    }
+}

Habitica.Todoist.Integration.Model/Habitica/Enums/TaskType.cs

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+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Habitica.Todoist.Integration.Model.Habitica.Enums
+{
+    public enum TaskType
+    {
+        Habit = 0,
+        Daily = 1,
+        Todo = 2,
+        Reward = 3
+    }
+}