adding --root arguement on omf_cert that allows an existing root cert to sign the new certificate.
adding --root arguement on omf_cert that allows an existing root cert to sign the new certificate.

phelipealves/omf,mytestbed/omf,phelipealves/omf,LABORA-UFG/omf,LABORA-UFG/omf,LABORA-UFG/omf,mytestbed/omf,LABORA-UFG/omf,phelipealves/omf,mytestbed/omf,mytestbed/omf,phelipealves/omf