Fix for the Jira issue IOT-524

Fix for the Jira issue IOT-524

This patch addresses the first part of IOT-524.
Added the --prefix option to install all the build output files
in the user preferred location, if opted for.
All exe files will go into PREFIX/bin and all library files will
go into PREFIX/lib
For ex: /home/XYZ/bin and /home/XYZ/lib

Change-Id: Id1ab0fe0ca0ed0b3b86095df87f172448c366daf
Signed-off-by: Ravi Nanjundappa <nravi.n@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/1439
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Jon A. Cruz <jonc@osg.samsung.com>
Reviewed-by: Younghyun Joo <yh_.joo@samsung.com>
Reviewed-by: Minji Park <minjii.park@samsung.com>
Reviewed-by: Jihun Ha <jihun.ha@samsung.com>
Reviewed-by: Uze Choi <uzchoi@samsung.com>