This commit adds code to support onboarding a VNFD template that supports parameterized input.At VNF deploy time, this feature allows to specify a yaml file with values to be substituted for the parameters specified in the VNFD template. Change-Id: If55229fde092d1d760870d0280aec0bcd5cb9c6f Closes-bug: #1484227 Depends-On: I72b6e8da8826a3c80c1a73aa37f912fc9ec3e291