bug(#3986): added integration test for running program from jar

[maxonfjvipon]

Ref: #3986

In this PR I've added an integration test that runs simple EO program from JAR in the same way we do it in eoc.
Also I've changed an implementation of package objects. Now they may have \rho attribute

[github-actions]

🚀 Performance Analysis

Test	Base Score	PR Score	Change	% Change	Unit	Mode
benchmarks.XmirBench.xmirToEO	158.597	173.512	14.916	9.40%	ms/op	Average Time
benchmarks.XmirBench.xmirToPhi	179.423	195.247	15.825	8.82%	ms/op	Average Time
benchmarks.XmirBench.xmirToSaltyPhi	136.726	151.787	15.061	11.02%	ms/op	Average Time

⚠️ Performance loss: benchmarks.XmirBench.xmirToEO is slower by 14.916 ms/op (9.40%)
⚠️ Performance loss: benchmarks.XmirBench.xmirToPhi is slower by 15.825 ms/op (8.82%)
⚠️ Performance loss: benchmarks.XmirBench.xmirToSaltyPhi is slower by 15.061 ms/op (11.02%)

[maxonfjvipon]

@yegor256 please check

[0crat]

@maxonfjvipon Thank you for your contribution! Your effort is appreciated, but there are some areas for improvement. Based on our policy, you've earned 4 points: +4 as a base, -8 for exceeding 200 hits-of-code (327), and -4 for having only 2 comments. However, we've adjusted it to ensure you receive at least 4 points. For future contributions, please aim for more concise code and encourage more detailed reviews. Remember, quality over quantity is key. Looking forward to your next submission!

[0crat]

@yegor256 Thanks for the review! You've earned +4 points for this contribution: +4 as a basis; -24 for self-review; +0.02 for 2 hits-of-code; -16 for no comments; -8 for less than 16 hits-of-code; +24 to meet the minimum reward. Keep up the good work and aim for more comments and code in future reviews! 💻👍