fix(framework): include log level setup

[Diogo21Costa]

PR Summary

This pull request introduces a new feature (echo mode), along with a crucial bug fix in the logging behavior of the Python framework.

Echo mode

The echo mode provides three options:

• Full echo (echo=full): Prints all logging information.
• None echo (echo=none): Suppresses printing of the entire log.
• Test Framework echo (echo=tf): Prints only the log associated with the test framework.

Log Level Fix

Additionally, this PR addresses a bug where the log level defined in the device tree was not being correctly passed to the nix-build command for the Python framework.

Configuration in Device Tree Source (DTS)

To enable more granular control over the logging behavior, two fields are now used in the config.dts file:

1. log_level (log_level=0, 1, 2):

   • Defines the logging produced by the C code of the framework, and ranges from 0 (simplest) to 2 (most comprehensive).

2. echo (echo=full, none, tf):

   • Determines the Echo mode behavior as described above.

Please review the changes and share your thoughts and suggestions.

[Diogo21Costa]

@miguelafsilva5 @ESCristiano: This PR depends on PR #18. As such, it should only be merged after approving the other one.