Vendor-specific OTM: Mutual Verified Just-Works & Confirmed MFG Cert

Vendor-specific OTM: Mutual Verified Just-Works & Confirmed MFG Cert

This patch adds vendor-specific Ownership Transfer Methods,
Mutual Verified Just-Works, which works the same as
https://gerrit.iotivity.org/gerrit/#/c/14359/7
and Confirmed Manufacturer Certificate
Due to difference between this method and Verified Just-Works (CR29)
this method has been implemented as a separate vendor-specific OTM.
Also confirmation on server side has been added to manufacturer certificate
to make a new vendor-specific OTM: confirmed manufacturer certificate
Cherry-picked from https://gerrit.iotivity.org/gerrit/#/c/14739/

Change-Id: I80d77b6e36cc857916f3e89f36d2c1f4dfbc5215
Signed-off-by: Jongmin Choi <jminl.choi@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/15187
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Randeep Singh <randeep.s@samsung.com>