tests: make tests less make dependent

Implement command line argument parsing instead of passing arguments via
environment variables. Add script for running tests without having to
invoke make. Deprecate running tests via make.

Type: improvement
Change-Id: I2e3054a61a2ae25d460e9be00be7d7705fbf943e
Signed-off-by: Klement Sekera <ksekera@cisco.com>
Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
diff --git a/test/test_dhcp.py b/test/test_dhcp.py
index e17b004..a3b410c 100644
--- a/test/test_dhcp.py
+++ b/test/test_dhcp.py
@@ -5,7 +5,7 @@
 import struct
 import six
 
-from framework import VppTestCase, VppTestRunner, running_extended_tests
+from framework import VppTestCase, VppTestRunner
 from framework import tag_run_solo
 from vpp_neighbor import VppNeighbor
 from vpp_ip_route import find_route, VppIpTable