Merge pull request #1800 from sacereda/pbrmaterial_h

define missing type,N params

include/assimp/pbrmaterial.h

@@ -65,7 +65,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #define _AI_MATKEY_GLTF_SCALE_BASE "$tex.scale"
 #define _AI_MATKEY_GLTF_STRENGTH_BASE "$tex.strength"
 
-#define AI_MATKEY_GLTF_TEXTURE_TEXCOORD _AI_MATKEY_GLTF_TEXTURE_TEXCOORD_BASE, type, N
+#define AI_MATKEY_GLTF_TEXTURE_TEXCOORD(type, N) _AI_MATKEY_GLTF_TEXTURE_TEXCOORD_BASE, type, N
 #define AI_MATKEY_GLTF_MAPPINGNAME(type, N) _AI_MATKEY_GLTF_MAPPINGNAME_BASE, type, N
 #define AI_MATKEY_GLTF_MAPPINGID(type, N) _AI_MATKEY_GLTF_MAPPINGID_BASE, type, N
 #define AI_MATKEY_GLTF_MAPPINGFILTER_MAG(type, N) _AI_MATKEY_GLTF_MAPPINGFILTER_MAG_BASE, type, N