ChildBrowser Support for Android (#XMMORPHO-17)

#XMMORPHO-17

This has added ChildBrowser support for Android. It enables following.

- View HTML content in ChildBrowser
- Show side menu and hide side menu which need to resize the ChildBrowser dialog to make the side menu visible
- Zoom In/ Zoom Out the page
- Closes the ChildBrowser window when the Back button is clicked