Added GL_PATCHES as new constant

jme3-core/src/main/java/com/jme3/renderer/opengl/GL4.java

@@ -41,4 +41,5 @@ import java.nio.IntBuffer;
 public interface GL4 extends GL3 {
     public static final int GL_TESS_CONTROL_SHADER=0x8E87;
     public static final int GL_TESS_EVALUATION_SHADER=0x8E88;
+    public static final int GL_PATCHES=0xE;
 }