Added TryConvert case for Angle in UnitValueTests.cs.

Author: angularsen

Tests/UnitValueTests.cs

@@ -14,6 +14,7 @@ public void TryConvertReturnsFalseOnIncompatibleUnits()
             Assert.False(new UnitValue(1, Unit.Pascal).TryConvert(Unit.Second, out newValue));
             Assert.False(new UnitValue(1, Unit.SquareMeter).TryConvert(Unit.Second, out newValue));
             Assert.False(new UnitValue(1, Unit.CubicMeter).TryConvert(Unit.Second, out newValue));
+            Assert.False(new UnitValue(1, Unit.Degree).TryConvert(Unit.Second, out newValue));
         }
     }
 }