Add container component for login API integration

[mayuriardad]

• Create a container component
  which will have the callback function for the google login button

• The callback function will call Google OAuth API and get the access token

• Call login API with access token and API helper functions

• Create an action to set user access token to redux state

• If the login API call is success dispatch an action to set user's token

• once this flow is successful use saga generator function to make login API calls

• Test Case for Saga.

• Test Case for reducer.

• Test Case for container.

• add error handling for login failure.

• add error handling for closing google login panel.

• Code guidelines are met

• PR guidelines are met

• Test cases added