Update all cmd-*-vpp repos that use edwarnicke/vpphelper

[denis-tingaikin]

Update all cmd-*-vpp repos that use edwarnicke/vpphelper. For example (cmd-nsc-vpp):

• Replace github.com/edwarnicke/vpphelper v0.2.0 with github.com/networkservicemesh/vpphelper main
• Update imports in *.go files (edwarnicke --> networkservicemesh)
• go mod tidy

To test it:

• docker build -t {cmd-nsc-vpp} .
• use this image in your cluster

[bellycat77]

Also, need to do before commit:

go fmt
goimports -w -local github.com/networkservicemesh .
go generate ./...

[denis-tingaikin]

Seems like done.

Other issues we'll consider in separate tickets.