Better handle multiple roles under the same employer

[hartmantis]

Roughly (if I can make Eleventy do this)

for entry in work_experience:
  if (already seen an entry with entry.name):
    append to previous job item
  else
    start a new job item

At the simplest. But how to account for unordered job items?

The alternative is to break with h-resume in another way and use an array of jobs under each company.