Changes

Bug 1021: Add GenericStereoDevice* Supporting custom configurations; Hook-in oculusvr-sdk java distortion-mesh calculation if available

StereoDeviceFactory support new GenericStereoDeviceFactory, with it's GenericStereoDevice and GenericStereoDeviceRenderer.

GenericStereoDevice maintains different configurations, triggered either by passing a GenericStereoDevice.Config
instance directly or by the device-index parameter:

  - 0: monoscopi device: No post-processing

  - 1: stereoscopic device SBS: No post-processing

  - 2: stereoscopic device SBS + Lenses: Distortion post-processing
       (only available w/ oculusvr-sdk sub-module)

Producing a 'GenericStereoDevice.Config' instance is self containing
and may extend if supporting more device types like top-bottom, interlaced etc.

StereoDemo01 handles all use-cases and may be used as a test-bed
to add and experiment with stereoscopy, devices and settings.

Findbugs.minor: Fix 'array -> string', missing argument

Findbugs.normal: Adding safeguard hashCode() implementation throwing InternalError("hashCode not designed")

As long we don't use Object.hashCode() to idenitify the memory address, we can safeguard the code.

Findbugs.synchronization: Fix double-check w/o volatile; Remove redundant synchronized from setter

Findbugs.not-written.null: Fix referencing non-written fields (never written or due branching)

- AWT TextRenderer: Add throw new InternalError("fontRenderContext never initialized!"); FIXME!
- GLContextImpl.hasFBOImpl(): Fix serious NPE issue if extCache is null
- GLDrawableFactoryImpl.createOffscreenDrawableImpl(..):
  - Fix NPE issue w/ null drawable
  - Fix resetting GammaRamp by ensuring originalGammaRamp will be set at 1st setGammaRamp(..)

- AndroidGLMediaPlayerAPI14: Fix NPE: Use already resolved local referenced
- EGLDrawableFactory: Fix NPE: Only operate on non null surface!
- ALAudioSink.dequeueBuffer(..): Only resolve releasedBuffer elements if not null
-

Findbugs.switch-case: GLBuffers.bytesPerPixel(..) throw GLException for type BITMAP && format !COLOR_INDEX || !STENCIL_INDEX

Findbugs.increment_volatile: Use AtomicInteger or add comment that operation is safe!

GenericStereoDevice: Cast to float before operating division, requesting float. Base aspect-ratio on eyeTextureSize

Findbugs.static_final_immutable: Use final qualifier for static immutable instances.

Findbugs: Remove redundant instanceof checks

Findbugs: Use Integer.parseInt(string) for int values to avoid boxing and unboxing

Findbugs: Add FIXME comment regarding float comparison (consider using FloatUtil.isEqual(ax, bx, epsilon), FloatUtil.isZero(bx, epsilon), ..)

Findbugs: Fix WindowImpl.getReconfigureFlags(..): Remove sloppy useless assignment-or, replace by plain or

Findbugs: Add comment about intended setting of static field by instance method.

Fix regression of commit 96d530e7127c89db9991080e6268c6e8430d0619: EGLDisplayUtil.eglCreateEGLGraphicsDevice(..) call w/ uninitialized 'surface'

Findbugs: Use <NumberType>.valueOf(..) instead of 'new <NumberType>(..)'

Findbugs: Remove branches where reference cannot be null

Findbugs: Remove dead-code / unused [temp] storage and it's assignment

Findbugs: Add comments that FB warnings are of no concern ..

Findbugs: Misc minor issues (see below)

- remove duplicate code in branch
- Use Type.valueOf(primitive)
- Don't use array.toString() directly
- remove dead code

AnimatorBase: Use cached synchronized value instead of unsynchronized (sloppy left-over code)

Findbugs: Use AtomicInteger for synchronized increment access

Findbugs: Use 'float' division instead of integer for float results

Findbugs: Misc issues (Use private accessors of static fields; Use boolean operator; Avoid NPE

Findbugs: Use inner static class where possible

Findbugs: Use static fields where possible

Findbugs: Comment on some issues (OK, they are) ; Remove dead branches

StereoDevice: Don't make inner class's method private due to wrapper generation (still, findbugs didn't report this)