feat（新功能）:

fix（修复bug）:  pattern_image (上色无印花sketch图)，修改为不拉伸
docs（文档变更）:
refactor（重构）:
test(增加测试):

app/service/design_fast/pipeline/color.py

@@ -22,7 +22,7 @@ class Color:
             resize_pattern = cv2.resize(pattern, (dim_image_w, dim_image_h), interpolation=cv2.INTER_AREA)
         # 无色
         elif "color" not in result.keys() or result['color'] == "":
-            result['final_image'] = result['pattern_image'] = result['single_image'] = result['image']
+            result['no_seg_sketch'] = result['final_image'] = result['pattern_image'] = result['single_image'] = result['image']
             result['alpha'] = 100 / 255.0
             return result
         # 正常颜色