Changes

HowToBuild: Add 'libudev-devel' for oculusvr-sdk sub-module compilation

build: Add oculusvr java-doc ; Add jogl-test-java-src.zip in 7z archive

Bug 1021: Make OVR access vendor agnostic: Package 'com.jogamp.opengl.util.stereo' contains all public interfaces/classes

Renamed interfaces:
  CustomRendererListener -> CustomGLEventListener
  StereoRendererListener -> StereoGLEventListener

New vendor agnostic 'stuff' in com.jogamp.opengl.util.stereo:
  1 - StereoDeviceFactory
    To create a vendor specific StereoDeviceFactory instance,
    which creates the StereoDevice.

  2 - StereoDevice
    For vendor specific implementation.
    Can create StereoDeviceRenderer.

  3 - StereoDeviceRenderer
    For vendor specific implementation.

  4 - StereoClientRenderer
    Vendor agnostic client StereoGLEventListener renderer,
    using a StereoDeviceRenderer.
    Now supports multiple StereoGLEventListener, via add/remove.

- MovieSBSStereo demo-able via StereoDemo01
  can show SBS 3D movies.

Fix FloatUtil.makePerspective(..): The tan(fovy/2) shall be used, not tan(fovy), fix callers; Simplify FloatUtil.makePerspective(..FovHVHalves..)

Fix FloatUtil.makePerspective(..): The tan(fovy/2) shall be used, not tan(fovy), fix callers
 - This bug didn't hit (yet), since callers already performed the division (degree -> radian)
   by falsly claiming the passed value is in radian - where it was actually fov/2 in radians.

Simplify FloatUtil.makePerspective(..FovHVHalves..)
 - Due to the fix above, it became pretty clear that the makeFrustum(..)
   method can be utilized.
   Simply apply all our tan-half-fov values on zNear.