This commit introduces functionality to delete hash values from the Dragonfly database. It includes two new functions: `hashDelete` for deleting a hash value by key, and `hashDeleteId` for deleting a hash value by both key and ID.
Key changes:
* **`fnc_processQueue.sqf`:** Added cases for "hdel" and "hdelid" task types to process hash deletion requests, calling the corresponding `FUNC(hashDelete)` and `FUNC(hashDeleteId)` functions.
* **`XEH_PREP.hpp`:** Added `PREP` definitions for `hashDelete` and `hashDeleteId` to enable event handlers for these functions.
Add two new functions to interface with DragonflyDB pub/sub system:
- fnc_subscribe.sqf: Subscribe to channels with CBA event routing
- fnc_publish.sqf: Publish messages to channels
These functions integrate with the existing pubSubHandler to route
messages through CBA's event system using 'global', 'local', 'server',
and 'remote' event types.
Both functions include proper input validation, error handling, and
detailed documentation with examples.
