Add option to respect/ignore safe area on iOS

[BorisB]

Feature Request

Motivation Behind Feature

Design of some applications requires to show content all over display, including space, reserved for system status bar (for example Google Maps). On iOS Cordova allows to use this space for its html body, but inappbrowser ignore this fact and use only safe area part of body.

Feature Description

Add "respect-safe-area" option with default value true. If it's true - to keep everything as is. If it's false - use for inappbrowser all body area, no matter if it respects safe area or not.

Alternatives or Workarounds

As I know, there are no workaround right now.