fix(models): add models directory

models/subject/sample/pinsage_model_data_info_name_mapping.json

@@ -0,0 +1,42 @@
+{
+    "sparse_col":{
+        "gender":0,
+        "identity":1,
+        "edu_background":2,
+        "logins":3,
+        "grade":4,
+        "experience":5,
+        "visits":6,
+        "stages_count":7,
+        "stage_shixuns_count":8,
+        "shixuns_count":9,
+        "study_count":10,
+        "course_study_count":11,
+        "passed_count":12,
+        "challenge_count":13,
+        "evaluate_count":14,
+        "study_pdf_attachment_count":15,
+        "averge_star":16
+    },
+    "user_sparse_col":{
+        "gender":0,
+        "identity":1,
+        "edu_background":2,
+        "logins":3,
+        "grade":4,
+        "experience":5
+    },
+    "item_sparse_col":{
+        "visits":6,
+        "stages_count":7,
+        "stage_shixuns_count":8,
+        "shixuns_count":9,
+        "study_count":10,
+        "course_study_count":11,
+        "passed_count":12,
+        "challenge_count":13,
+        "evaluate_count":14,
+        "study_pdf_attachment_count":15,
+        "averge_star":16
+    }
+}