alsasink: pause/resume

alsasink can now detect a resume, stop and pause. The sink is now
properly paused using snd_pcm_pause(), and without losing any data
16 jobs for alsa_pause_resume in 47 minutes and 20 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Preparation
passed #261478
gst indent

00:00:30

passed #261477
manifest

00:00:39

 
  Build
passed #261479
build fedora x86_64

00:04:32

passed #261480
build nodebug fedora x86_64

00:11:43

 
  Test
passed #261481
check fedora

00:03:22

passed #261482
integration testsuites fedora

00:08:00

 
  Full Builds
passed #261484
build cerbero android universal

00:10:47

passed #261485
build cerbero cross win32

00:10:02

passed #261486
build cerbero cross win64

00:05:13

passed #261483
build cerbero fedora x86_64

00:05:31

 
  Full Tests
passed #261490
valgrind bad

00:06:49

passed #261487
valgrind base

00:07:52

passed #261491
valgrind ges

00:06:03

passed #261488
valgrind good

00:09:21

passed #261489
valgrind ugly

00:01:34

 
  Apps
passed #261492
android universal examples

00:06:47