Update noise3D.glsl

Changed scaling of output to exactly match "noise3Dgrad.glsl"

src/noise3D.glsl

@@ -98,6 +98,6 @@ float snoise(vec3 v)
 // Mix final noise value
   vec4 m = max(0.5 - vec4(dot(x0,x0), dot(x1,x1), dot(x2,x2), dot(x3,x3)), 0.0);
   m = m * m;
-  return 106.0 * dot( m*m, vec4( dot(p0,x0), dot(p1,x1), 
+  return 105.0 * dot( m*m, vec4( dot(p0,x0), dot(p1,x1), 
                                 dot(p2,x2), dot(p3,x3) ) );
   }