Compare pairwise changed files with their dependency weights

[JohT]

🚀 Feature

• Compare pairwise changed files with their dependency weights. GitHistoryGeneral.ipynb now also contains a section that compares pairwise files changes and code dependencies (e.g. imports). Different correlations and p-values are calculated and a scatter plot shows the results.

🛠 Fix

• Fix missing git changes due to not reliably present label