Add link from EOG Pass to Specs

[KuechA]

Closes #1760

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 75.13%. Comparing base (3fe8edb) to head (5f59e92).
Report is 1 commits behind head on main.

Additional details and impacted files

Files with missing lines	Coverage Δ
...hofer/aisec/cpg/passes/EvaluationOrderGraphPass.kt	89.53% <100.00%> (-0.07%)	⬇️

... and 1 file with indirect coverage changes

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[konradweiss]

Add one general link to the specification in the class doc of the pass together with a reminder for future developers to extend the documentation.

One additional thing that we "could" change, but this is more a usability remark, is to change the individual link texts to "-Specification" instead of simply "Specification" to make it clearer that they lead to different parts of the specification.