tests: move fib tests to src/vnet/fib/test

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

Type: test

Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
Change-Id: I0529eb51b5a6bc2a5f1a49ee9d3320908ad1dba9

diff --git a/test/test_dvr.py b/src/vnet/fib/test/test_dvr.py
similarity index 100%
rename from test/test_dvr.py
rename to src/vnet/fib/test/test_dvr.py

diff --git a/test/test_fib.py b/src/vnet/fib/test/test_fib.py
similarity index 100%
rename from test/test_fib.py
rename to src/vnet/fib/test/test_fib.py