Add several paddle nlp samples. (#290)

Author: Xreki

paddle_samples/PaddleNLP/bart-base/graph_hash.txt

@@ -0,0 +1 @@
+752fd67d12054cfd32677bec5eae6b293b7af30f784daf6da7b29049d300361c

paddle_samples/PaddleNLP/chinese-xlnet-base/graph_hash.txt

@@ -0,0 +1 @@
+be19706eab62425b7014788a90447aa1413bb2990334a60dad10a424ce300a9a

paddle_samples/PaddleNLP/chinese-xlnet-large/graph_hash.txt

@@ -0,0 +1 @@
+845a39a2df9046b5673fad1785a3a216037950eb451d58aa167b8b989334fd55

paddle_samples/PaddleNLP/chinese-xlnet-mid/graph_hash.txt

@@ -0,0 +1 @@
+e29ad28c026c0c6760a73db8bfa502afcc3f239b12ca8c2dd3ba3b258544b744

paddle_samples/PaddleNLP/electra-base/graph_hash.txt

@@ -0,0 +1 @@
+03434c5692eadd4f05bb5feaf8ea4eb6778381fda71507383df7c9a01e702062

paddle_samples/PaddleNLP/electra-base/graph_net.json

@@ -0,0 +1,6 @@
+{
+    "framework": "paddle",
+    "model_name": "electra-base",
+    "num_devices_required": 1,
+    "num_nodes_required": 1
+}

paddle_samples/PaddleNLP/electra-base/input_meta.py

@@ -0,0 +1,34 @@
+class Program_weight_tensor_data_0:
+    name = "data_0"
+    shape = [1, 21]
+    dtype = "int64"
+    data = [
+        101,
+        7592,
+        1010,
+        2026,
+        2171,
+        2003,
+        3960,
+        1012,
+        1045,
+        2572,
+        4083,
+        2055,
+        2312,
+        2653,
+        4275,
+        1998,
+        2037,
+        4294,
+        2015,
+        1012,
+        102,
+    ]
+
+
+class Program_weight_tensor_data_1:
+    name = "data_1"
+    shape = [1, 21]
+    dtype = "int64"
+    data = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]