Multipatch log should provide basic information about logged devices

[campagnola]

Currently, lines in the multipatch log file give the name of the manipulator to which they belong, but there is no way to determine anything else about the manipulator, such as:

• What is being manipulated (a headstage with pipette? a stim electrode?)
• Orientation
• Association with ephys data

It might be the case that some of this information should be logged elsewhere. It would be nice if we could at least graphically reconstruct the pipette orientations when reading the log file.

An easy fix for orientation might be to just include the complete transform for each pipette as part of its initial state. We could also have each pipette provide a describe method that could provide more custom information (like MIES channel associations).