Tweaks for tests, allow for grabbing global scope variables

Upsilon/BaseTypes/Number/Number.cs

@@ -82,5 +82,18 @@ namespace Upsilon.BaseTypes.Number
 
         #endregion
 
+        public static explicit operator double(Number n)
+        {
+            if (n.IsFloat)
+                return ((NumberDouble) n);
+            return ((NumberLong) n).Value;
+        }
+
+        public static explicit operator long(Number n)
+        {
+            if (n.IsFloat)
+                return (long)((NumberDouble) n).Value;
+            return ((NumberLong) n).Value;
+        }
     }
 }