Feature: ios:accessibilityPerformEscape()

[m-abs]

accessibilityPerformEscape()

Dismisses a modal view and returns the success or failure of the action.

User action: A two-finger Z-shaped gesture that dismisses a modal dialog, or goes back one level in a navigation hierarchy. Returns true, if we're handling the escape. Dev note: Unlike accessibilityPerformMagicTap() this cannot be added to the AppDelegate in NativeScript.