docs: automated sphinx documentation for python bindings

[JSeam2]

Changes:

1. Automated python bindings documentation for readthedocs.io
2. Creates a branch and tag with the latest version.
3. Updates documentation on python.rs with numpy docstring format.

IMPORTANT
Prior to merge please set RTDS_WEBHOOK_URL and RTDS_WEBHOOK_TOKEN in the project secrets. Otherwise, it will not build any documentation.

You can obtain this by going to readthedocs.io and registering for an account. After linking the project, you may obtain the values from Admin > Integrations > Github Incoming Webhook, the respective values would be found there.

On the github side, a webhook from Readthedocs should be set, however, we will need to override the push settings. In the repository itself go to Settings > Code and Automation > Webhooks > Select readthedocs.io > unselect pushes. Save the changes.

Manual Setup Notes
Should Oauth permissioning be too invasive. A possible route is to setup manually. Select Import Project

Then select import manually

Furnish more details about the project

You will be directed to the next page. Simply click finish.

After which you will be directed to the dashboard. From here we want to setup github webhooks. Click on Admin.

Then click on integrations

We want to use Github incoming webhooks. So if this option is already present, click Next.

You will be provided with a url and secret. We want to store them as RTDS_WEBHOOK_URL and RTDS_WEBHOOK_TOKEN respectively.

Go back to the github repository and click on settings.

We first want to setup the two env variables. Go to secrets and variables > actions, copy the two values into the following env variables. This is needed for github action to trigger the push event.

Next, create a webhook on github end with the two values obtained. Select Let me select individual events. And then enable, Branch or tag creation, Branch or tag deletion, Pull requests

After which the Github webhook should send a ping to readthedocs.io, if the connection is successful it would not throw an error.