Lowered Minnaert default roughness value on slider,

read roughness value at start, changed minnaert diffuse shader to take
in light diffuse color, removed unused code and moved to
shaders_old/shader_old.frag, added a second directional light weaker but
warmer colour, physically-based shader specular_colour is also changed,
added edge shader, bloom shader tweaked amount to 0.065, fxaa changed to
three.js's newest version, also updated ssao along with changing samples
to 40, and added luminance influence, water shader (still working on
fixing offset), changed processing pass instance variable name for
vtkShaderProgram to Program1