list hosting-assets with debitor, parent and type query-parameters (#52)

Co-authored-by: Michael Hoennig <michael@hoennig.de>
Reviewed-on: https://dev.hostsharing.net/hostsharing/hs.hsadmin.ng/pulls/52
Reviewed-by: Timotheus Pokorra <timotheus.pokorra@hostsharing.net>

src/main/resources/db/changelog/1-rbac/1050-rbac-base.sql

@@ -97,7 +97,7 @@ $$;
 create table RbacObject
 (
     uuid        uuid primary key default uuid_generate_v4(),
-    serialId    serial, -- TODO: we might want to remove this once test data deletion works properly
+    serialId    serial, -- TODO.perf: only needed for reverse deletion of temp test data
     objectTable varchar(64) not null,
     unique (objectTable, uuid)
 );