Merge changes from topics "move-kerneltotag", "move-socket-tagging-to-mainline"

* changes:
  Move socket tagging implementation to mainline.
  Move kernelToTag to NetworkStatsFactory.
tree: 7e45787f7bdcd9b933b20c8d62e2c38cec61e114
  1. framework/
  2. framework-t/
  3. service-t/
  4. services/
  5. tests/