#1602 Change delimiter between name and version

[maxonfjvipon]

Ref: #1602

What's done:

• changed delimiter between name and version in EO object from | to #. Reason: | is illegal for windows
• refactored tests

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PR-Codex overview

This PR focuses on improving object name handling in the EO Maven plugin.

Detailed summary

• Updated comments and method names for clarity.
• Added a new method to check if a foreign tojo contains a specific object name.
• Updated delimiter constant for EO object names.
• Renamed a variable for consistency.
• Updated XSL stylesheet to use the new delimiter in probe meta.
• Updated tests to use the new object name format.

The following files were skipped due to too many changes: eo-maven-plugin/src/test/java/org/eolang/maven/PullMojoTest.java

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[maxonfjvipon]

@volodya-lombrozo please review this one, the PR is not so big as you might suppose

[maxonfjvipon]

@volodya-lombrozo please have a look one more time

[maxonfjvipon]

@volodya-lombrozo please have a look one more time

[maxonfjvipon]

@volodya-lombrozo please have a look one more time

[volodya-lombrozo]

@maxonfjvipon Looks good to me, thanks!

[maxonfjvipon]

@yegor256 please have a look

[yegor256]

@rultor merge

[rultor]

@rultor merge

@yegor256 OK, I'll try to merge now. You can check the progress of the merge here

[rultor]

@rultor merge

@yegor256 Done! FYI, the full log is here (took me 12min)