Feature/core - Enhance async module exception handling to prevent core from crashing under module failure

[glrs]

This pull request includes several changes to improve error handling and task management in the ygg-mule.py and ygg_trunk.py files. The most important changes are the introduction of a new asynchronous function for launching realms and enhanced exception handling in the process_couchdb_changes function.

Improvements in error handling and task management:

• ygg-mule.py: Added a new asynchronous function launch_realm to handle the launching of realms with proper error handling. Updated the process_document function to use this new function. [1] [2]
• ygg_trunk.py: Enhanced the process_couchdb_changes function to gather task results with return_exceptions=True and log any exceptions that occur. This ensures that all exceptions are properly logged and handled. [1] [2]