tests: skip more excluded plugin tests

Check and skip VPP_EXCLUDED_PLUGINS tests for most of plugins.

Type: improvement
Signed-off-by: Dmitry Valter <d-valter@yandex-team.com>
Change-Id: I23fd3666729251c639aa8da72a676058e3f5bb4e
diff --git a/test/test_igmp.py b/test/test_igmp.py
index 037f108..e0da2b8 100644
--- a/test/test_igmp.py
+++ b/test/test_igmp.py
@@ -19,6 +19,7 @@
     wait_for_igmp_event,
 )
 from vpp_ip_route import find_mroute, VppIpTable
+from config import config
 
 
 class IgmpMode:
@@ -27,6 +28,7 @@
 
 
 @tag_fixme_vpp_workers
+@unittest.skipIf("igmp" in config.excluded_plugins, "Exclude IGMP plugin tests")
 class TestIgmp(VppTestCase):
     """IGMP Test Case"""