Distorted Android

Make the WAVE effect 5D (extra parameter 'offset')

swap the 2nd and the 3rd parameters in the WAVE effect and improve comments for the WAVE user API.

Switch off the pre-compulting of sin and cos in CPU as it turns out that those two are single-instruction functions on any modern GPU ( http://www.gamedev.net/topic/322422-number-of-gpu-cycles-for-cos-and-sin-functions/ - link form 2005 ! )

Improve the comment the WAVE effect.

Correct one more issue with computation of WAVE.

Correct one issue with incorrect shadows in WAVE when V.z <0 .

Now we can add up the WAVE effect to others with smooth shading! Remaining issues:

- when angle A < 0, the shades are wrong
- sometimes (check with the 3D vertex & Fragment effects' app) we get black spots at seemingly random points. Looks like computational instability again.

Shades in the WAVE effect fully working, if the effect is the only one.

Remaining: combine the shades with other effects!

Shades of the WAVE effect (almost!) working.

small improvements in DISTORT