- modify existing keyword "configure_interface_vxlan" to be able to:
- configure all VxLAN parameters at once
- configure VxLAN parameters one by one
- remove a parameter
- remove all parameters at once
Change-Id: I50551fbc3ae5c6aa147d531fc66b583af36bb541 Signed-off-by: Tibor Frank <tifrank@cisco.com>