Changes for JsonSchema and Raml Parser.

Changes for JsonSchema and Raml Parser.

1.Added reading Double from Json Schema
2.Adding prevent and klockwork fixes for Raml and JsonSchema parser.
3.Minor fixes.

Change-Id: I2459bbdee23b8491a290f21fdfa13c7979efda97
Signed-off-by: abitha.s <abitha.s@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/3375
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Uze Choi <uzchoi@samsung.com>
(cherry picked from commit 0fe7faa0e424bd2bba5a8d8e05f8e88c1d88c705)
Reviewed-on: https://gerrit.iotivity.org/gerrit/3717