@Override
    public void glAttachShader(int program, int shader) {
        JmeIosGLES.glAttachShader(program, shader);
    }
Implements OpenGL ES 2.0 and 3.0 for iOS. 

@author Kirill Vainer, Jesus Oliver
jme3-ios/src/main/java/com/jme3/renderer/ios/IosGL.java