Finished the loading and saving of color transfer functions. Must test if it does a good job. Need to alter the renderer flow to acomodate a multidimensional transfer function renderer. Maybe inherit the class?
Added a new renderer class that handles the multidimensional transfer functions rendering needs. It inherits the Renderer class. Reinstated the log stream.
Added a default constructor due to inheritance needs.
Changed the default renderer to multidimrenderer.
Completed the loadColorTransferFunction function and added getters to the ids of the remaining textures.