Change Details

We want to keep the conceptual separation between Item and Property terms, but still find ways to share more of the actual code instead of having it copy+pasted. Classes include: - `DatabaseItemTermStoreWriter`/`DatabasePropertyTermStoreWriter` - `PrefetchingItemTermLookup`/`PrefetchingPropertyTermLookup` - `ItemTermsRebuilder`/`PropertyTermsRebuilder` - … Create a new subtask for each pair when picking this story up.