Improvement: `Debug`/`ScoreDebug` abstraction

[arkjedrz]

• Package that contains log abstraction selectable with feature flag (from Cargo or from Bazel).
• Derive trait alias (e.g., provide DebugAlias -> use Debug for log and ScoreDebug for mw_log).
• Alias for Debug/ScoreDebug trait (e.g., type containt for generic method).