V3 migration (#128)

* Implement migration to V3 vault

* Fix comment

* Fix linting errors

* Reduce parallelism

* Remove accounting for fees escrow rewards

* Fix linter

* Add v3 implementations

* Add implementations to networks

.circleci/config.yml

@@ -58,7 +58,7 @@ jobs:
   test:
     executor: default
     resource_class: large
-    parallelism: 16
+    parallelism: 14
     steps:
       - checkout
       - attach_workspace:
@@ -103,7 +103,7 @@ jobs:
   coverage:
     executor: default
     resource_class: large
-    parallelism: 16
+    parallelism: 14
     steps:
       - checkout
       - attach_workspace: