[IOT-2378] .json and .dat matching

[IOT-2378] .json and .dat matching

Bug: https://jira.iotivity.org/browse/IOT-2378
Change-Id: I2f5fc880f2f5ef324566adead3e8b5822278e2a3
Signed-off-by: ol.beketov <ol.beketov@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/20481
Tested-by: jenkins-iotivity <jenkins@iotivity.org>
Tested-by: Phil Coval <philippe.coval@osg.samsung.com>
Reviewed-by: Phil Coval <philippe.coval@osg.samsung.com>
Reviewed-by: Dan Mihai <Daniel.Mihai@microsoft.com>
Reviewed-by: Randeep Singh <randeep.s@samsung.com>