Add futurist to lib/oslo and stackrc

Part of blueprint adopt-futurist

Change-Id: I17e27a085c7c509bad6018016e90d0114543b073
diff --git a/stackrc b/stackrc
index b010a88..c16a999 100644
--- a/stackrc
+++ b/stackrc
@@ -326,6 +326,10 @@
 GITREPO["cliff"]=${CLIFF_REPO:-${GIT_BASE}/openstack/cliff.git}
 GITBRANCH["cliff"]=${CLIFF_BRANCH:-master}
 
+# async framework/helpers
+GITREPO["futurist"]=${FUTURIST_REPO:-${GIT_BASE}/openstack/futurist.git}
+GITBRANCH["futurist"]=${FUTURIST_BRANCH:-master}
+
 # debtcollector deprecation framework/helpers
 GITREPO["debtcollector"]=${DEBTCOLLECTOR_REPO:-${GIT_BASE}/openstack/debtcollector.git}
 GITBRANCH["debtcollector"]=${DEBTCOLLECTOR_BRANCH:-master}