freeze deps

requirements.txt

+attrs==20.3.0
 bcrypt==3.1.7
+certifi==2020.12.5
+cffi==1.14.4
+chardet==3.0.4
+click==7.1.2
 ffmpy==0.2.2
 Flask==1.1.1
 Flask-Caching==1.8.0
 Flask-Session==0.3.1
 Flask-WTF==0.14.3
 gunicorn==20.0.4
+idna==2.10
+importlib-metadata==3.3.0
+itsdangerous==1.1.0
+Jinja2==2.11.2
 jsonschema==3.2.0
+MarkupSafe==1.1.1
+pycparser==2.20
 pymongo==3.10.1
+pyrsistent==0.17.3
 redis==3.4.1
 requests==2.23.0
+six==1.15.0
+typing-extensions==3.7.4.3
+urllib3==1.25.11
 websockets==7.0
+Werkzeug==1.0.1
+WTForms==2.3.3
+zipp==3.4.0