Add Custom Redis Prefix

[cyongkypranowo]

Hi @masrodjie ;

I have forked this project and added a new update that I believe will be beneficial to all users. The update is called "Add Custom Redis Prefix".

This feature allows users to specify a custom prefix for Redis keys. This is particularly useful in scenarios where multiple applications are using the same Redis instance, as it helps to avoid key collisions.

Here are the main changes I made:

1. Added a new configuration option for specifying the Redis prefix.
2. Modified the Redis key generation function to prepend the custom prefix to all keys.

I have thoroughly tested this feature and ensured that it does not introduce any breaking changes. All existing functionalities of the project work as expected with this new feature.

I believe this feature will enhance the flexibility and usability of the project. I look forward to your feedback and hope for a positive consideration of this pull request.