refactor\!: rename GeocodioClient to Geocodio

BREAKING CHANGE: The main client class has been renamed from GeocodioClient to Geocodio for simplicity and consistency with other SDKs.

Migration guide:
- Change imports from `from geocodio import GeocodioClient` to `from geocodio import Geocodio`
- Update instantiation from `client = GeocodioClient(...)` to `client = Geocodio(...)`

Author: MiniCodeMonkey

src/geocodio/__init__.py

@@ -4,6 +4,6 @@
 """
 
 from ._version import __version__
-from .client import GeocodioClient
+from .client import Geocodio
 
-__all__ = ["GeocodioClient", "__version__"]
+__all__ = ["Geocodio", "__version__"]

src/geocodio/client.py

@@ -27,7 +27,7 @@
 from geocodio.exceptions import InvalidRequestError, AuthenticationError, GeocodioServerError, BadRequestError
 
 
-class GeocodioClient:
+class Geocodio:
     BASE_PATH = "/v1.9"  # keep in sync with Geocodio's current version
     DEFAULT_SINGLE_TIMEOUT = 5.0
     DEFAULT_BATCH_TIMEOUT = 1800.0  # 30 minutes