Creep.moveByPath incompatible with path returned by PathFinder.Search

[TJ-Wittliff]

This is incorrect:

docs/api/source/Creep.md

Line 655 in d514366

A path value as returned from <a href="#Room.findPath"><code>Room.findPath</code></a>, <a href="#RoomPosition.findPathTo"><code>RoomPosition.findPathTo</code></a>, or <a href="#PathFinder.search"><code>PathFinder.search</code></a> methods. Both array form and serialized string form are accepted.

Creep.moveByPath is unable to accept an array of RoomPosition objects returned by PathFinder.search

Ideally, fix the bug; at least fix the doc to match current state.