Distorted Android

We need to re-add upping the max number of fragment effects as their default was lowered back to 5 in the library.

Remove all the calls to DistortedLibrary.setMax() (except for app 'Check', which explictly checks this API)

More support for using the library from more than one activity

1) Beginnings of support for using the library from more than one activity
2) rename DistortedLibrary.onCreate() to onSurfaceCreated()
3) (rubik) add Cambodia's flag.

We need to pause an Activity in the following way:

1) Activity.onPause()
2) View.onPause()
3) Library.onPause()

otherwise sometimes there are artifacts when pausing!

Only compile the Full, Normal & OIT programs when they are actually needed.

Progress with Predeform: UI for the list of Vertex effects to preapply.

Convert Earth to stretchless API.

A lot of changes.

1) main vertex shader: remove support for degree_object. This functionality will hopefully come back when we introduce other than circular regions.
2) MeshBase: remove the need to set a Bounding box (this is the point of the whole thing - we wanted to get rid of this so that the advances in MeshJoined will be easier)...

Progress with MeshJoin app.
Fix rotating in some apps.