Include "in the works" section in the Readme

[rajeee]

COMPASS version checks

• I have checked that the issue still exists on the latest versions of the docs on main here

Location of the documentation

https://github.com/NatLabRockies/COMPASS/blob/main/README.rst

Documentation problem

I think it will be good to add a Upcoming or similar section in the Readme about the plugins/features/datasets being developed/produced and tentative timeline.

Suggested fix for documentation

Upcoming Dataset

1. U.S. Wind Siting Regulation and Zoning Ordinances 2026 - Tentative October, 2026
2. U.S. Solar Siting Regulation and Zoning Ordinances 2026 - Tentative October, 2026
3. ...

Upcoming Plugins

1. ...