fixing ref processing in the bytes.eo

[yegor256]

See #3496

---

PR-Codex overview

This PR focuses on refactoring the parsing and optimization components of the eo project by replacing instances of ParsingTrain with TrParsing, enhancing logging, and improving the handling of XSL transformations.

Detailed summary

• Deleted ParsingTrain.java and ParsingTrainTest.java, replaced with TrParsing.java and TrParsingTest.java.
• Updated imports from ParsingTrain to TrParsing in multiple files.
• Introduced TrStepped for enhanced processing of XML transformations.
• Added a method in PhiMojoTest to validate .phi file generation.
• Adjusted logging levels in log4j.properties.
• Enhanced error handling in XSL templates.

✨ Ask PR-Codex anything about this PR by commenting with /codex {your question}