use pip-compile + requirements.in for better dependency management

[Mayukhdeb]

more info can be found here

[sushmanthreddy]

hey @Mayukhdeb can u assign this issue to me?..for generating requirements.txt file, we can use this command pip freeze < requiremnst.txt

u need to update this from pip-compile setup.py to pip-compile requirements.in I think this complete issue?I would like to work on this issue

[Mayukhdeb]

sure! go ahead and make the changes 👍