[WIP] Updates

[schu]

It looks like dep is not able to handle projects with cgo code always: by default it prunes needed header (.h) files, while project prune settings like below lead to added headers but also to the fact the full package is added and not only needed / used subpackages.

[prune]
  non-go = true
  go-tests = true
  unused-packages = true

  [[prune.project]]
  name = "github.com/iovisor/gobpf"
  non-go = false
  unused-packages = false

Is it possible? Investigation pending..