tests: move cli tests to src/vlib/test

- Refactor make test code to be co-located with
  the vpp feature source code

Type: test

Signed-off-by: Dave Wallace <[email protected]>
Change-Id: Ic27fb8c476cfd95879dec645c3c0cd6db341ee00

diff --git a/test/test_cli.py b/src/vlib/test/test_cli.py
similarity index 100%
rename from test/test_cli.py
rename to src/vlib/test/test_cli.py