[gcr] (7 commits) ...Merge branch 'wip/dueno/ssh-agent' into 'master'

[Daiki Ueno <dueno src gnome org>]

Summary of changes:

  9761517... egg: Port egg-file-tracker from gnome-keyring (*)
  0932602... gcr-ssh-agent: Port from gnome-keyring (*)
  04c2c84... egg: Port scratch file/directory functions from gnome-keyri (*)
  e225c52... gcr: Port ssh-agent tests from gnome-keyring (*)
  5012bee... gcr-ssh-agent: Wire up systemd activation (*)
  0e6b3e2... ci: Pull in necessary components for ssh-agent (*)
  f78b289... Merge branch 'wip/dueno/ssh-agent' into 'master'

(*) This commit already existed in another branch; no separate mail sent