wireplumber: update to master as of Nov 19th 2019

wireplumber: update to master as of Nov 19th 2019

* Fixes the crashes that have previously been observed on the green machine
* Addresses issues with format selection on some devices
* Removed the mixer module which is no longer used

Bastien Nocera (2):
      build: Fix build after recent PipeWire header changes
      ci: Add CI

George Kiagiadakis (9):
      lib/wp: move internal functions and declarations to a private.h header
      proxy: allow multiple augment tasks to run in parallel
      fixup: include private.h in monitor.c
      lib: introduce WpObjectManager
      object-manager: actually add the object-manager.* files in git
      endpoint-link: ensure we call finalize of the parent class
      proxy: debug in dispose() so that we can print the pw_proxy pointer
      adapter: select a reasonable device format instead of letting pipewire choose its own
      ci: use the same os image as pipewire and build pw with minimal features

Julian Bouzas (1):
      modules: remove the mixer

Bug-AGL: SPEC-2837
Bug-AGL: SPEC-2860

Change-Id: Ica817888c877f409c4e57edb8f29f4cdf6ea0489
Signed-off-by: George Kiagiadakis <george.kiagiadakis@collabora.com>