Visualize and Tabulate 'R' Package Dependencies // Plot an 'R' package's recursive dependency graph and tabulate the number of unique downstream dependencies added by top-level dependencies. This helps 'R' package developers identify which of their declared dependencies add the most downstream dependencies in order to prioritize them for removal if needed. Uses graph stress minimization adapted from Schoch (2023) doi:10.21105/joss.05238 and originally reported in Gansner et al. (2004) doi:10.1007/978-3-540-31843-9_25.