DULStatusBarViewController layout issues on iPhone X/iOS 11

[bryanrahn]

Issues:

1. DULStatusBarViewController does not layout properly when in portrait mode,
2. iOS UI Library components do not account for safeAreaLayoutGuide

iOS UI Library 4.3
DJI iOS SDK: 4.3.1
iOS 11
iPhone X
Xcode 9

[jayvenn]

Bump