Change VectorAnimationThread's thread name as VectorManagerThread

Change VectorAnimationThread's thread name as VectorManagerThread

Since kernel log only print prefix of thread name only 15 characters,
We cannot check whether the problem comes from "VectorAnimationTask" or "VectorAnimationThread".
(The 15 prefix characters are both "VectorAnimation")

To avoid this case, let we change the name of VectorAnimationThread's thread name as
VectorManagerThread.

Change-Id: Ia09e1c974ad2645f7f7f16b3f62d0bcac7bcde35
Signed-off-by: Eunki Hong <eunkiki.hong@samsung.com>