Add getPreferredName package

[rubensworks]

Based on the outcomes of SolidLabResearch/Challenges#4

This can become part of a new @solidlab/name package.

[RubenVerborgh]

Suggestion: @solidlab/person or @solidlab/people

[rubensworks]

@Sindhu-Vasireddy Since you worked on SolidLabResearch/Challenges#4, perhaps you are interested in taking up this issue?