Base windows UI is working.

* No joining/leaving networks yet, but they do display.
* Nothing is updated yet after first load of the app.  Need to set up a background task to run updates.

windows/WinUI/APIHandler.cs

@@ -0,0 +1,69 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Net;
+using System.IO;
+using Newtonsoft.Json;
+
+namespace WinUI
+{
+    
+
+    public class APIHandler
+    {
+        static string authtoken = "p3ptrzds5jkr2hbx5ipbyf04";  // delete me!
+
+        private string url = null;
+
+        public APIHandler()
+        {
+            url = "http://127.0.0.1:9993";
+        }
+
+        public APIHandler(string host, int port)
+        {
+            url = "http://" + host + ":" + port;
+        }
+
+        public ZeroTierStatus getStatus()
+        {
+            var request = WebRequest.Create(url + "/status" + "?auth=" + authtoken) as HttpWebRequest;
+            if (request != null)
+            {
+                request.Method = "GET";
+                request.ContentType = "application/json";
+            }
+
+            var httpResponse = (HttpWebResponse)request.GetResponse();
+            using (var streamReader = new StreamReader(httpResponse.GetResponseStream()))
+            {
+                var responseText = streamReader.ReadToEnd();
+
+                ZeroTierStatus status = JsonConvert.DeserializeObject<ZeroTierStatus>(responseText);
+                return status;
+            }
+        }
+
+        public List<ZeroTierNetwork> getNetworks()
+        {
+            var request = WebRequest.Create(url + "/network" + "?auth=" + authtoken) as HttpWebRequest;
+            if (request != null)
+            {
+                request.Method = "GET";
+                request.ContentType = "application/json";
+            }
+
+            var httpResponse = (HttpWebResponse)request.GetResponse();
+            using (var streamReader = new StreamReader(httpResponse.GetResponseStream()))
+            {
+                var responseText = streamReader.ReadToEnd();
+                Console.WriteLine(responseText);
+
+                List<ZeroTierNetwork> networkList = JsonConvert.DeserializeObject<List<ZeroTierNetwork>>(responseText);
+                return networkList;
+            }
+        }
+    }
+}