Refactored provisioning client sample on C-level API

Refactored provisioning client sample on C-level API

[Patch #1] submitted initial patch set
[Patch #2] fixed minor variable initialization
[Patch #3] fixed minor typo bugs
[Patch #4] updated enough callback timeout
[Patch #5,6] Rebase
[Patch #10] Rebase, DeleteACL is exposed by Provisioning Manager
[patch #11] Remove DeleteACLLit() prototype in srmutility.h

Change-Id: Ifa929b37eae410605285aaeb66ac5385f08f94dc
Signed-off-by: Kyungsun Cho <goodsun.cho@samsung.com>
Signed-off-by: Woochul Shim <woochul.shim@samsung.com>
Signed-off-by: Randeep Singh <randeep.s@samsung.com>
Signed-off-by: Woochul Shim <woochul.shim@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/2367
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Sachin Agrawal <sachin.agrawal@intel.com>