new wizard for mobile applications

Adds NativeBinaryDestinationPage and NativeBinaryExportWizard as sister
wizard for NativeProjectDestinationPage. Modifies so that they share
most of the code.
projectBuilder extension point implementation completed for Android

Completes the missing parts of the extentension point implementation
including the wizard for export. Implementation for Android is provided.
Various refactoring and small fixes
Refactoring iOS build to support new extension point

Refactors the XCodeBuild to conform with the NativeBuilder extension
point.
Complete the iOS implementation for binary exports

Adds enablement support for the extension point. Refactors ios xcode
build support to accommodate arm builds and sdks. As a side-effect
launch configuration changes done on launch config UI is reflected to
simulator builds as well.