Update parse logic of introspectProvider result.

Update parse logic of introspectProvider result.

When received introspect provider result,
consumer service expect to get provider policy as type of boolean.
But, policy is integer type although provider side set boolean type.
So, parse logic of policy is updated to parse for given type by received payload.

Change-Id: I695e81179172376499345f9b1f6323a04325a015
Signed-off-by: KIM JungYong <jyong2.kim@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/11359
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Hun-je Yeon <hunje.yeon@samsung.com>
Reviewed-by: Uze Choi <uzchoi@samsung.com>