Rework wind history API

Weather/Service/Models/WindHistoryGrouped.cs

@@ -0,0 +1,19 @@
+using JetBrains.Annotations;
+using System;
+
+namespace ChrisKaczor.HomeMonitor.Weather.Service.Models
+{
+    [PublicAPI]
+    public class WindHistoryGrouped
+    {
+        public DateTimeOffset Bucket { get; set; }
+
+        public decimal MinimumSpeed { get; set; }
+
+        public decimal AverageSpeed { get; set; }
+
+        public decimal MaximumSpeed { get; set; }
+
+        public decimal AverageDirection { get; set; }
+    }
+}