Modify ResourcePresenceUnitTest Code

Modify ResourcePresenceUnitTest Code

- There is Segmentation fault because it is used 'weak pointer' without non-pre used 'shared pointer'.
so ResourcePresence instance's type is changed 'low pointer' to 'shared pointer'

- ResourcePresence's logic was chaging. so UnitTest's logic was changing(used mocking api's order and number)

Change-Id: Ic7ab6ae24b4b7bcb671d11728d16d0031842e002
Signed-off-by: doil.kwon <doil.kwon@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/1935
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Madan Lanka <lanka.madan@samsung.com>