Initial commit of the Bridging Project's Mini Plugin Manager + 1 plugin.

Initial commit of the Bridging Project's Mini Plugin Manager + 1 plugin.

This commit is comprised of the Mini Plugin Manager framework along with
1 plugin and 1 stubbed plugin. This commit allows a user to test the full
end-to-end story of the MPM.

Change-Id: I3914963442cb175b438c3e3d8ff2d244f8eb339b
Signed-off-by: Joseph Morrow <joseph.l.morrow@intel.com>
Signed-off-by: vijendrx <vijendrax.kumar@intel.com>
Signed-off-by: Mandeep Shetty <mandeep.shetty@intel.com>
Signed-off-by: skambalx <srikarx.kambaluru@intel.com>
Signed-off-by: Gaganpreet Kaur <gaganpreetx.kaur@intel.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/16707
Tested-by: jenkins-iotivity <jenkins@iotivity.org>
Reviewed-by: George Nash <george.nash@intel.com>
Reviewed-by: Ossama Othman <ossama.othman@intel.com>
Reviewed-by: Todd Malsbary <todd.malsbary@intel.com>