ability to run without claimtrie functionality

Can we add a parameter to make lbrycrd run in a "finance only" mode? Something that would avoid creating the claims.sqlite and avoid computing claim hashes during sync?

Start by locating the code that creates claims.sqlite, computes claim hashes, and performs claimtrie work during sync. Determine the required finance-only parameter behavior and identify tests needed to verify that finance-only runs avoid those operations while normal runs remain unchanged.

Written by the indexing model from the issue text.