Reinstate the resources import removed by
06f4f85, without this
we fail to create any resources (GenericResource is created for
all resources due to no resource plugins being imported).
bug
1133434
Change-Id: I2b24d58dee83a426deee09f8a9a121f503534de4
from heat.common import identifier
from heat.engine import parser
from heat.engine import resource
+from heat.engine import resources
from heat.engine import watchrule
from heat.openstack.common import log as logging