Please set the default stream (stable) and profiles (default) for the avocado module in rawhide.

PR: https://pagure.io/releng/fedora-module-defaults/pull-request/41

Note: This change will also allow retirement of the non-modular avocado packages.

• Describe the issue
  The "avocado" module currently has no default stream or profiles set.

• When do you need this? (YYYY/MM/DD)
  2019/01/30

• When is this no longer needed or useful? (YYYY/MM/DD)
  N/A

• If we cannot complete your request, what is the impact?

  • "avocado" modular packages cannot be installed unless the user first manually enables a module stream.
  • Users wishing to install the "avocado" module manually need to explicitly specify the "default" profile.
  • Non-modular "avocado" packages cannot be retired as requested by BZ#1660921