tests/playback: due to popular demand mv them from examples to icles

The tests are toys and not reference demos.

configure.ac

@@ -953,13 +953,13 @@ tests/examples/app/Makefile
 tests/examples/dynamic/Makefile
 tests/examples/gio/Makefile
 tests/examples/overlay/Makefile
-tests/examples/playback/Makefile
 tests/examples/seek/Makefile
 tests/examples/snapshot/Makefile
 tests/examples/volume/Makefile
 tests/examples/v4l/Makefile
 tests/files/Makefile
 tests/icles/Makefile
+tests/icles/playback/Makefile
 docs/Makefile
 docs/design/Makefile
 docs/libs/Makefile

tests/examples/Makefile.am

@@ -8,8 +8,8 @@ if USE_GIO
 GIO_SUBDIRS = gio
 endif
 
-SUBDIRS = app  dynamic $(FT2_SUBDIRS) $(GIO_SUBDIRS) overlay playback volume v4l
+SUBDIRS = app  dynamic $(FT2_SUBDIRS) $(GIO_SUBDIRS) overlay volume v4l
 
-DIST_SUBDIRS = app dynamic gio overlay playback seek snapshot volume v4l
+DIST_SUBDIRS = app dynamic gio overlay seek snapshot volume v4l
 
 include $(top_srcdir)/common/parallel-subdirs.mak

tests/icles/Makefile.am

@@ -1,3 +1,6 @@
+SUBDIRS = playback
+DIST_SUBDIRS = playback
+
 if USE_X
 X_TESTS = stress-xoverlay