svn: Unify loader constructor + register worker (tasks, cli)
With this, we stop passing parameters to the load method. We pass those parameters to the loader's constructor.
- svn.tasks: Adapt tasks according to the constructor unification
- svn.tasks: Rename tasks according to production's
- loader.svn: Register svn worker (scheduler task auto-registration + cli auto-registration)
Related to T2134
Depends swh-loader-core!374 (closed)
Test Plan
tox
Migrated from D2398 (view on Phabricator)