fix(api): add provider methods

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
Signed-off-by: Marco Zabel <marco.zabel@dynatrace.com>

Author: marcozabel

openfeature/_api.py

@@ -60,6 +60,12 @@ def set_provider(
 
     def get_provider_metadata(self, domain: str | None = None) -> Metadata:
         return self._provider_registry.get_provider(domain).get_metadata()
+    def get_provider(self, domain: str | None = None) -> FeatureProvider:
+        return self._provider_registry.get_provider(domain)
+
+    def get_provider_status(self, provider: FeatureProvider) -> ProviderStatus:
+        return self._provider_registry.get_provider_status(provider)
+
 
     def clear_providers(self) -> None:
         self._provider_registry.clear_providers()