Add Reimbursement app

apps/reimbursement/test/helpers/permissions.js

@@ -0,0 +1,17 @@
+const ANY_ADDRESS = '0xffffffffffffffffffffffffffffffffffffffff'
+
+const setOpenPermission = async (acl, appAddress, role, rootAddress) => {
+  // Note: Setting a permission to 0xffffffffffffffffffffffffffffffffffffffff
+  // is interpreted by aragonOS as allowing the role for any address.
+  await acl.createPermission(
+    ANY_ADDRESS, // entity (who?) - The entity or address that will have the permission.
+    appAddress, // app (where?) - The app that holds the role involved in this permission.
+    role, // role (what?) - The particular role that the entity is being assigned to in this permission.
+    rootAddress, // manager - Can grant/revoke further permissions for this role.
+    { from: rootAddress}
+  )
+}
+
+module.exports = {
+  setOpenPermission
+}