Added more unit tests and refactored AstroMaths to be in a sub folder

Meade.net.Telescope/AstroMaths/AltitudeData.cs

@@ -0,0 +1,12 @@
+using System;
+
+namespace ASCOM.Meade.net.AstroMaths
+{
+    public class AltitudeData
+    {
+        public DateTime UtcDateTime { get; set; }
+        public double SiteLatitude { get; set; }
+        public double SiteLongitude { get; set; }
+        public EquatorialCoordinates equatorialCoordinates { get; set; }
+    }
+}