Added basic repository to semantic-linking

src/data-hub/semantic-linking-microservice/app/db/repository.py

+import pymongo
+import network_constants as netconst
+from database.MongoRepositoryBase import MongoRepositoryBase
+import json
+
+from typing import List
+
+class Repository(MongoRepositoryBase):
+    '''This is a repository for MongoDb.'''
+
+    def __init__(self):
+        super().__init__(netconst.SEMANTIC_LINKING_DB_HOSTNAME,
+                         netconst.SEMANTIC_LINKING_DB_PORT,
+                         'semanticLinkingDb')
+
+        self._layer_collection = 'layer'
+

src/data-hub/semantic-linking-microservice/app/requirements.txt

-flask
-connexion[swagger-ui]
-pika
+astroid==2.4.2
+attrs==19.3.0
+certifi==2020.4.5.2
+chardet==3.0.4
+click==7.1.2
+clickclick==1.2.2
+colorama==0.4.3
+connexion==2.7.0
+Flask==1.1.2
+idna==2.9
+importlib-metadata==1.6.1
+inflection==0.5.0
+isort==4.3.21
+itsdangerous==1.1.0
+Jinja2==2.11.2
+jsonschema==3.2.0
+lazy-object-proxy==1.4.3
+MarkupSafe==1.1.1
+mccabe==0.6.1
+openapi-spec-validator==0.2.8
+pika==1.1.0
+pylint==2.5.3
+pymongo==3.10.1
+pyrsistent==0.16.0
+PyYAML==5.3.1
+requests==2.23.0
+six==1.15.0
+swagger-ui-bundle==0.0.6
+toml==0.10.1
+typed-ast==1.4.1
+urllib3==1.25.9
+Werkzeug==1.0.1
+wrapt==1.12.1
+zipp==3.1.0

src/data-hub/semantic-linking-microservice/app/rest/debug.py

 from flask import request
+from db.repository import Repository
+
+repo = Repository()
 
 def echo():
     return request.json