[libsecret] (7 commits) ...Merge branch 'wip/dueno/local-file' into 'master'

[Daiki Ueno <dueno src gnome org>]

Summary of changes:

  9cfad7c... egg-testing: Sync with gnome-keyring (*)
  2d642b5... secret-file-backend: New backend for storing secrets in fil (*)
  8e43172... autotools: Generate secret-tool executable in tool/ (*)
  f2b7f6d... secret-tool: Add tests using file backend (*)
  8f886f0... secret-file-backend: Retrieve master password from flatpak  (*)
  a278adc... secret-backend: Check if portal is available (*)
  a653013... Merge branch 'wip/dueno/local-file' into 'master'

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