SIENTIAPDE-988

Add temporary functiontal tests, that must be removed soon.

Refactor tests: Remove outdated resource manager tests and add functional tests with Docker and Kafka integration

- Deleted existing unit tests for ResourceManager.
- Introduced new functional tests for single node operations with Redis and Kafka.
- Added Docker Compose setup for test environment.
- Implemented fixtures for Redis and Kafka consumers.
- Created comprehensive tests for data publishing and slot management.
- Added unit tests for DataManager and IngestorManager with mocked dependencies.
- Included tests for OpcManager covering connection, subscription, and data change notifications.

ingestor/managers/opc_manager.py

@@ -27,6 +27,10 @@ class OpcManager():
         self.subscriptions = {}
         self.data_manager = data_manager
 
+    def __str__(self):
+        return f"OpcManager(name={self.name}, url={self.url}, server_uri={self.server_uri})\n" \
+            f"nodes={self.nodes}, subscriptions={self.subscriptions}"
+
     def initialize_from_config(self, server_config: dict, data_manager: DataManager, logger: Logger):
         """
         Initializes the OpcManager instance using a server configuration dictionary.