"addPathsForType" logging is too noisy (Version: 1.9.1)

[mDuo13]

Issue Description

The log level for Pathfinder:WRN addPathsForType appears to be too verbose. It should be downgraded from warning to debug or trace level.

Steps to Reproduce

Run rippled 1.9.1 with the log level set to "WRN" for all components.

Expected Result

Routine API calls like pathfinding should not produce warning-level messages.

Actual Result

The log fills up with messages like in this screenshot:

Environment

Reported by Lathan in Mattermost

[ximinez]

Ouch. My bad.