Fix use of UIInterfaceOrientation constants

According to the documentation, UIDeviceOrientationLandscapeLeft and UIInterfaceOrientationLandscapeLeft are not the same. In fact, they are the exact opposite.

Take a look at the definition of UIInterfaceOrientation:

```
// Note that UIInterfaceOrientationLandscapeLeft is equal to UIDeviceOrientationLandscapeRight (and vice versa).
// This is because rotating the device to the left requires rotating the content to the right.
typedef NS_ENUM(NSInteger, UIInterfaceOrientation) {
    UIInterfaceOrientationUnknown            = UIDeviceOrientationUnknown,
    UIInterfaceOrientationPortrait           = UIDeviceOrientationPortrait,
    UIInterfaceOrientationPortraitUpsideDown = UIDeviceOrientationPortraitUpsideDown,
    UIInterfaceOrientationLandscapeLeft      = UIDeviceOrientationLandscapeRight,
    UIInterfaceOrientationLandscapeRight     = UIDeviceOrientationLandscapeLeft
};
```

That being said, I noticed that when <code>newInterfaceOrientation</code> was being calculated in <code>MotionOrientation.m:179 and MotionOrientation.m:197</code>, the constant was not being flipped.

This fix also affected <code>- (CGAffineTransform)affineTransform</code>, which was also fixed.