Import the crate rolling_file

[Forsworns]

Currently, Sentinel implements rolling-file loggers itself. Consider replacing it to the crate rolling_file. We should split these non-core features to reduce the complexity of codebase.

refer to:

• rolling-file and its BasicRollingFileAppender::new_with_buffer_capacity.
• Sentinel logging mod

[Forsworns]

may remove log4rs env_logger::Target::Pipe with the rolling-file crate above