Release final v2.0.0

* Multiple contract support
* Instant power consumption
* Historical consumption, generation and power demand
* Formalized data type thru dataclasses (not pydantic, yet?)

_This is just a rerelease of rc2_

pyproject.toml

@@ -2,7 +2,7 @@
 
 [project]
 name = "ideenergy"
-version = "2.0.0rc2"
+version = "2.0.0"
 dependencies = [
     "aiohttp <4.0,>=3.8",
     "importlib-metadata; python_version >= '3.11'",