Following EOG edges interprocedurally with stack

[KuechA]

Fixes #1997

We use the SimpleStack to identify possible paths and follow the invokes/calledBy edges to extend the intraprocedural EOG to an interprocedural version thereof. A unification/better interface of the context and SimpleStack or an improved version of the Query API will follow in separate PRs.

[codecov]

Codecov Report

Attention: Patch coverage is 74.41860% with 11 lines in your changes missing coverage. Please review.

Project coverage is 78.07%. Comparing base (0132710) to head (8b8ed9f).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...kotlin/de/fraunhofer/aisec/cpg/graph/Extensions.kt	74.41%	1 Missing and 10 partials ⚠️

Additional details and impacted files

Files with missing lines	Coverage Δ
...kotlin/de/fraunhofer/aisec/cpg/graph/Extensions.kt	63.77% <74.41%> (+2.09%)	⬆️

... and 2 files with indirect coverage changes

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