moved to logic from api to lib

GamsSets.cs

@@ -0,0 +1,23 @@
+using Newtonsoft.Json;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace FarmMapsAPI.Carbon
+{
+    public class GamsSets
+    {
+        public static T ReadSets<T>(string jsonFile)
+        {
+            T data;
+            using (StreamReader r = new StreamReader(jsonFile))
+            {
+                string json = r.ReadToEnd();
+                data = JsonConvert.DeserializeObject<T>(json);
+            }
+            return data;
+        }
+    }
+}