Modify Consumer Logic

Modify Consumer Logic

- Modify data type for message ID & message TTL (uint64_t: %llu->%lld).
- Rename NSConsumerQueueScheduler file name to NSConsumerScheduler.
- Modify NSConsumerScheduler to process sync type command for GetProvider.
- Add APIs to get message/provider

Change-Id: Ie40166fd6674bad162df9ead064a70b7e696ef13
Signed-off-by: YounghyunJoo <yh_.joo@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/9193
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Uze Choi <uzchoi@samsung.com>
Tested-by: Uze Choi <uzchoi@samsung.com>