easy_install: add slapos.libnetworkcache support

5 jobs for networkcache in 0 seconds
Status Job ID Name Coverage
  External
passed BUILDOUT-NEXT

00:11:16

passed BUILDOUT-NEXT

00:07:48

passed BUILDOUT-NEXT

00:26:41

passed BUILDOUT-NEXT

00:13:57

passed BUILDOUT-NEXT

00:11:09