JSM: Added module and TS file for VolumeShader.

Author: Mugen87

docs/manual/en/introduction/Import-via-modules.html

@@ -312,6 +312,7 @@ <h2>Importable Examples</h2>
 						<li>VerticalBlurShader</li>
 						<li>VerticalTiltShiftShader</li>
 						<li>VignetteShader</li>
+						<li>VolumeShader</li>
 						<li>WaterRefractionShader</li>
 					</ul>
 				</li>