Add force default orientation.

Devices can be configured to remain in their default landscape or
portrait orientation by setting config_forceDefaultOrientation true
in overlay/.../values/config.xml.

Activities that desire to run in the non-default orientation are
supported by creating a logical display within the physical display.
Transitions to and from the activity perform a crossfade rather than
the normal rotation animation.

Also, improve SurfaceTrace debug output.

Fixes bug 9695710.

Change-Id: I053e136cd2b9ae200028595f245b6ada5927cfe9