Use tracing crate instead of log to create logs

We are currently using both the tracing and log crate to emit logs in Hyperlight. We should only use tracing that extends log's functionality and adds more features.

Furthermore, some examples would be nice to demonstrate the use of the hyperlight crate as a dependency and show how the logs can be retrieved regardless of which crate (log or tracing) the example uses.

#1338 is also part of this issue