feat(#3251): introduced i64 object

[maxonfjvipon]

Ref: #3251

What's done:

1. the object i64 is introduced
2. number.is-nan, number.is-finite, number.is-integer objects are added
3. implementations of nan, positive-infinity and negative-infinity are changed
4. Data.ToPhi can return nan, positive-infinity or negative-infinity objects
5. implementations of hash-code-of and text objects are fixed
6. some tests are fixed

---

PR-Codex overview

The focus of this PR is to add new tests, improve error handling, and optimize type conversions in EO programming language modules.

Detailed summary

• Added new tests for various functionalities
• Improved error handling for type conversions
• Optimized type conversions in EO modules

The following files were skipped due to too many changes: eo-runtime/src/main/java/org/eolang/Data.java, eo-runtime/src/main/eo/org/eolang/positive-infinity.eo, eo-runtime/src/main/java/EOorg/EOeolang/EOi64$EOas_number.java, eo-runtime/src/main/java/EOorg/EOeolang/EOnumber$EOas_i64.java, eo-runtime/src/main/java/EOorg/EOeolang/EOi64$EOgt.java, eo-runtime/src/main/java/EOorg/EOeolang/EOi64$EOdiv.java, eo-runtime/src/main/java/EOorg/EOeolang/EOi64$EOtimes.java, eo-runtime/src/main/java/EOorg/EOeolang/EOi64$EOplus.java, eo-runtime/src/main/eo/org/eolang/i64.eo, eo-runtime/src/main/eo/org/eolang/number.eo, eo-runtime/src/test/eo/org/eolang/i64-tests.eo

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[maxonfjvipon]

@yegor256 I need your advice: what should i64 object decorate - bytes or number? If it decorates number then all bytes operations would skip i64.as-bytes representation which is different from number.as-bytes representation. My opinion that decorating bytes is better, don't really know why but it seems so... Now it decorates bytes

[maxonfjvipon]

@yegor256 WDYT?

[maxonfjvipon]

@yegor256 please check

[yegor256]

@maxonfjvipon LGTM, thanks!

[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 42min)

[0crat]

@maxonfjvipon Great contribution! Your efforts have earned you +4 points: +4 base, -8 for exceeding 200 hits-of-code (1135), -16 for surpassing 800 hits-of-code, -4 for only 5 review comments, and +28 adjustment to ensure fair compensation. While the code volume was high, remember that quality often trumps quantity. Your current balance stands at +72. Keep up the good work, and consider more compact, well-reviewed contributions in the future!

[0crat]

@yegor256 Great job on the review! 🎉 Your efforts have earned you +5 points: +4 base points, +16 (capped from +11.35) for reviewing 1135 hits-of-code, -10 for having only 5 comments, and -5 for self-review. Remember, more comments can boost your score next time! Your current balance stands at +114. Keep up the excellent work!