Add Missing Methods for Feeds

[Cliftonz]

Some endpoints of the following section can't be hit from this SDK.

We would like to ensure that all endpoints can be hit. For this issue, we would like to build out the Feeds Feature

Get Feeds - https://docs.novu.co/api-reference/feeds/get-feeds Create Feed - https://docs.novu.co/api-reference/feeds/create-feed Delete Feed - https://docs.novu.co/api-reference/feeds/delete-feed

[ayushsgithub]

I don't think so @pushkarroy, I just checked it and it's working fine! If you are having any trouble, please make video where you are getting this error, it will be much easier to solve the problem then.