Database queries used to get user's watchlist items in API are quite
complex due to number of options oferred by the API.
Generating the query is moved to WatchedItemQueryService.
ApiQueryWatchlistRaw no longer contains database-related code.
Simple user watchlist item lookups should use WatchedItemStore.
ApiQueryWatchlistRaw tests have been introduced in
I9c07aa237607143985f0efe20ed0065d2bde27e4
Bug: T132566
Change-Id: I875a92074b52c00ac11db1fa05615abbf5262ab1
This moves generating of a complex Watchlist and RecentChanges
related query to a WatchedItemQueryService class.
ApiQueryWatchlist class no longer contains any database-related
code.
Bug: T132565
Change-Id: I5a5cda13f8091baa430ac1a8e2176e0efd1ae192
