Distorted Android

Fixes for Deform and Moving Effects.

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.

Rename Meshes.

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!

Before somehow the Dynamics sometimes tolerated not being reset to beginning before next use. New version doesn't - correct that in two apps.

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

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)...

Port Deform to the new setStretch-less API.

Moving the Vertex and Fragment centers of effect to the center of the Mesh.