tests: move jittertest to tests directory

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>

diff --git a/jittertest/COPYING b/tests/jittertest/COPYING
similarity index 100%
rename from jittertest/COPYING
rename to tests/jittertest/COPYING

diff --git a/jittertest/JitterTest.c b/tests/jittertest/JitterTest.c
similarity index 100%
rename from jittertest/JitterTest.c
rename to tests/jittertest/JitterTest.c

diff --git a/jittertest/Makefile b/tests/jittertest/Makefile
similarity index 100%
rename from jittertest/Makefile
rename to tests/jittertest/Makefile

diff --git a/jittertest/README b/tests/jittertest/README
similarity index 100%
rename from jittertest/README
rename to tests/jittertest/README

diff --git a/jittertest/filljffs2.sh b/tests/jittertest/filljffs2.sh
similarity index 100%
rename from jittertest/filljffs2.sh
rename to tests/jittertest/filljffs2.sh

diff --git a/jittertest/plotJittervsFill.c b/tests/jittertest/plotJittervsFill.c
similarity index 100%
rename from jittertest/plotJittervsFill.c
rename to tests/jittertest/plotJittervsFill.c