Support Additional V2 endpoints, and discontinuation of Oura API V1

[sonmaximum]

I just wanted to let this project's maintainer know:

Oura has implemented additional API V2 endpoints since this project last updated. Among the new V2 endpoints are :

• Daily Readiness
• Daily Sleep
• Daily Spo2
• Rest Mode Period
• Ring Configuration
• Sleep
• Sleep Time
  Details are at https://cloud.ouraring.com/v2/docs

Additionally, Oura has announced that the V1 API is being discontinued in Jan 2024 and will no longer be available.

[samuelmr]

Thanks for the heads-up. I noticed Oura's email about discontinuation. I'll try to find time to react in time.

Pull requests are appreciated. :)