Fix for attribute arrays

Bugfix for enable attribute arrays, combinations of programs with
different number of enabled arrays would crash.
Move FillrateJ2SE

Move FillrateJ2SE to package com.super2k.benchmark.fillrate
Fillrate to use object factory

Fillrate program uses GLENObjectFactory to create objects.
Add sources to classpath

Add source path to OpenGLEN
Updates to code and comments