Plotting morphologies with radius above or below a given threshold

In certain cases during the analysis of the given networks, users want to visualize the compoenents of the networks that have radii below or above a given average. This feature should be implemented in all morphology builders.

Start by locating all morphology builders and their plotting entry points. Trace how component radii and average values are currently handled, then verify that each builder can visualize components above or below the requested threshold.

Written by the indexing model from the issue text.