Add component google scholar (#1790)

### What problem does this PR solve?

#1739 

### Type of change

- [x] New Feature (non-breaking change which adds functionality)

graph/component/__init__.py

 from .arxiv import ArXiv, ArXivParam
 from .google import Google, GoogleParam
 from .bing import Bing, BingParam
+from .googlescholar import GoogleScholar, GoogleScholarParam
 
 
 def component_class(class_name):

graph/component/googlescholar.py

+#
+#  Copyright 2024 The InfiniFlow Authors. All Rights Reserved.
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+from abc import ABC
+import pandas as pd
+from graph.settings import DEBUG
+from graph.component.base import ComponentBase, ComponentParamBase
+from scholarly import scholarly
+
+
+class GoogleScholarParam(ComponentParamBase):
+    """
+    Define the GoogleScholar component parameters.
+    """
+
+    def __init__(self):
+        super().__init__()
+        self.top_n = 6
+        self.sort_by = 'relevance'
+        self.year_low = None
+        self.year_high = None
+        self.patents = True
+
+    def check(self):
+        self.check_positive_integer(self.top_n, "Top N")
+        self.check_valid_value(self.sort_by, "GoogleScholar Sort_by", ['date', 'relevance'])
+        self.check_boolean(self.patents, "Whether or not to include patents, defaults to True")
+
+
+class GoogleScholar(ComponentBase, ABC):
+    component_name = "GoogleScholar"
+
+    def _run(self, history, **kwargs):
+        ans = self.get_input()
+        ans = " - ".join(ans["content"]) if "content" in ans else ""
+        if not ans:
+            return GoogleScholar.be_output("")
+
+        scholar_client = scholarly.search_pubs(ans, patents=self._param.patents, year_low=self._param.year_low,
+                                               year_high=self._param.year_high, sort_by=self._param.sort_by)
+        scholar_res = []
+        for i in range(self._param.top_n):
+            try:
+                pub = next(scholar_client)
+                scholar_res.append({"content": 'Title: ' + pub['bib']['title'] + '\n_Url: <a href="' + pub[
+                    'pub_url'] + '"></a> ' + "\n author: " + ",".join(pub['bib']['author']) + '\n Abstract: ' + pub[
+                                                   'bib'].get('abstract', 'no abstract')})
+
+            except StopIteration or Exception as e:
+                print("**ERROR** " + str(e))
+                break
+
+        if not scholar_res:
+            return GoogleScholar.be_output("")
+
+        df = pd.DataFrame(scholar_res)
+        if DEBUG: print(df, ":::::::::::::::::::::::::::::::::")
+        return df

requirements.txt

 demjson3==3.0.6
 discord.py==2.3.2
 duckduckgo_search==6.1.9
+editdistance==0.8.1
 elastic_transport==8.12.0
 elasticsearch==8.12.1
 elasticsearch_dsl==8.12.0
 huggingface_hub==0.20.3
 infinity_emb==0.0.51
 itsdangerous==2.1.2
+jina==3.27.2
 Markdown==3.6
+markdown_to_json==2.1.1
 minio==7.2.4
 mistralai==0.4.2
 nltk==3.8.1
 protobuf==5.27.2
 pyclipper==1.3.0.post5
 pycryptodomex==3.20.0
+pypdf==4.3.0
 PyPDF2==3.0.1
 pytest==8.2.2
 python-dotenv==1.0.1
 Requests==2.32.2
 roman_numbers==1.0.2
 ruamel.base==1.0.0
+scholarly==1.7.11
 scikit_learn==1.5.0
 selenium==4.22.0
 setuptools==70.0.0
 xgboost==2.1.0
 xpinyin==0.7.6
 zhipuai==2.0.1
-pypdf==4.3.0
-jina==3.27.2

requirements_arm.txt

 arxiv==2.1.3
 pypdf==4.3.0
 google_search_results==2.4.2
-jina==3.27.2
+jina==3.27.2
+editdistance==0.8.1
+markdown_to_json==2.1.1
+scholarly==1.7.11

requirements_dev.txt

 arxiv==2.1.3
 pypdf==4.3.0
 google_search_results==2.4.2
-jina==3.27.2
+jina==3.27.2
+editdistance==0.8.1
+markdown_to_json==2.1.1
+scholarly==1.7.11