New version of osc for the following distributions:

openSUSE Tumbleweed
openSUSE Leap 15.1
SLES 15
SLES 15.1

0.166.0
  - New password handling backend. Supported password stores:
      * Plaintext password
      * Obfuscated password
      * python-keyring (kwallet, secret store)
      * gnome-keyring
      * no store at all (ask for the password every time
  - Refactor initial setup of osc (to select password store)
  - fix decoding on osc lbl (boo#1137477)
  - fix breakage of submitting complete branches back as an
    submit request that contain packages without a change.
  - fix error with plugins and osc -h
  - various decoding improvements
  - Transfer the name of the input file to vc instead of the content
    (obs-build/vc will do the rest and open the file).
  - support appimage builds
  - new command browse. (opens a browser opening the project or package)
  - new option --incoming for osc rq and osc review to only show only
    incoming reqeusts for a project.