temporarily include pattern library node modules for sass builds [FEDX-498]

temporarily include pattern library node modules for sass builds [FEDX-498]

fixup tests

pavelib/assets.py

@@ -45,6 +45,7 @@ COMMON_LOOKUP_PATHS = [
     path("common/static/sass"),
     path('node_modules/@edx'),
     path('node_modules'),
+    path('node_modules/edx-pattern-library/node_modules'),
 ]
 
 # A list of NPM installed libraries that should be copied into the common

pavelib/paver_tests/test_assets.py

@@ -28,6 +28,7 @@ class TestPaverWatchAssetTasks(TestCase):
             path('common/static'),
             path('node_modules/@edx'),
             path('node_modules'),
+            path('node_modules/edx-pattern-library/node_modules'),
             path('lms/static/sass/partials'),
             path('lms/static/sass'),
             path('lms/static/certificates/sass'),