Replace kavlan-remote by kavlan-global-remote in vlan API

In Kavlan, global vlans from other sites are called 'kavlan-remote'. To
be more understandable we choose to rename it.
3 jobs for features/#12187 in 22 minutes and 4 seconds (queued for 1 second)
Status Job ID Name Coverage
  Lint
passed #817074
grid5000-docker
rubocop

00:01:32

 
  Test
passed #817075
grid5000-docker
test-for-buster

00:09:59

86.84%
 
  Deb
passed #817076
grid5000-docker
deb-for-buster

00:10:33