Add shading/ directory to corpus

fx/shading/2_shading_type3.pdf

Index: fx/shading/2_shading_type3.pdf
diff --git a/fx/pattern/2_color_type3_pattern_bbox.pdf b/fx/shading/2_shading_type3.pdf
similarity index 74%
copy from fx/pattern/2_color_type3_pattern_bbox.pdf
copy to fx/shading/2_shading_type3.pdf
index 1407f63283cfee05de1529bf316f502cabcb4f9c..bc93108a5a80cdad7fdea7fcbd5d9588b9393a85 100644
--- a/fx/pattern/2_color_type3_pattern_bbox.pdf
+++ b/fx/shading/2_shading_type3.pdf
@@ -45,8 +45,8 @@ endobj
   /ShadingType 3
   /ColorSpace /DeviceCMYK
   /Background [1 0 0 1]
-  /BBox [0 0 50 50] %% ¾ÍÏ൱ÓÚÒ»¸öclipping
-  /Coords [0.0 0.0 0.096 0.0 0.0 1.000]
+  %/BBox [0 0 50 50] %% ¾ÍÏ൱ÓÚÒ»¸öclipping
+  /Coords [0.0 0.0 0.096 0.0 0.0 3.000]
   /Function 10 0 R
   /Extend [false false]
 >>
@@ -58,7 +58,7 @@ endobj
   /Domain [0.0 1.0]
   /Functions [11 0 R 12 0 R]
   /Bounds [0.708]
-  /Encode [1.0 0.0 0.0 1.0]
+  /Encode [1.0 0.0 1.0 1.0]
 >>
 endobj
 
@@ -66,8 +66,10 @@ endobj
 <<
   /FunctionType 2
   /Domain [0.0 1.0]
-  /C0 [0.929 0.357 1.000 0.298]
-  /C1 [0.631 0.278 1.000 0.027]
+ % /C0 [0.929 0.357 1.000 0.298]
+  %/C1 [0.631 0.278 1.000 0.027]
+/C0 [1 0 0 0]
+/C1 [0 1 0 0]
   /N 1.048
 >>
 endobj
@@ -78,6 +80,8 @@ endobj
   /Domain [0.0 1.0]
   /C0 [0.929 0.357 1.000 0.298]
   /C1 [0.941 0.400 1.000 0.102]
+%/C0 [0 0 1 0]
+%/C1 [0 0 0 1}
   /N 1.374
 >>
 endobj