quaquel / EMAworkbench / 6683122120

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Add detailed logging for MPIEvaluator in EMAworkbench

Introduced detailed logging capabilities for the MPIEvaluator to facilitate debugging and performance tracking in distributed environments.

Key changes include:
- Configured a logger specifically for the MPIEvaluator.
- Passed logger's level to each worker process to ensure consistent logging verbosity across all nodes.
- Added specific log messages to track the progress of experiments on individual MPI ranks.
- Improved the log format to display the MPI process name alongside the log level, making it easier to identify logs from different nodes.
- Modified `log_to_stderr` in `ema_logging` to adjust log levels for root logger based on an optional flag.

With this enhancement, users can now get a clearer insight into the functioning and performance of the MPIEvaluator in HPC systems, helping in both development and operational phases.

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