ROI implementation

Started to implement the visualization of scanned NavX EAM data
WindowController updated

Including new init with Viewers.
Filter updated

Now creating the main window WITH two controllers.
Filter updated

Extended the init process to find existing windows for the viewer pair
and use those if they exist. Otherwise a new window controller is
initialized.
Filter updated

Prefpane integration revised to now include the shiny icon in various
places.
dataSet updated

Prepared the dataset to deal with spacing values.
dataSet updated

Continued implementation of geometry information updates. Update is now
called upon windowController init.
Filter updated

Minor logging tweak.
Window init and layout improved

The init process now actually used two viewerControllers from the List.
The init is aborted when less than two viewers are present and a
warning is given for a greater number.
GUI updated

Added "Show ROI" button the the EAM Interface.
GUI updated

Added a button to show and hide the EAM ROI.
DataSet updated

Updated the DataSet to correctly read EAM coordinates and save them to
eamPoints. Prepared for EAM ROI display.
Coordinates reworked

Reworked the coordinates to allow for quicker calculations.
Cleanup

Just cleaning up some fragments.
Coord updated

implemented a neat description method for coordinates.
Not working state using NSDecimalNumbers

Some corrections and a crashung fast enumeration on the eamPoints
NSMutable array in the dataSet class.
Coord updated

Updated the Coord class to now feature value properties with (retain)
instead of (assign) to counter premature dealloc. Also added some
sorting to the DataSet ROI functionality.
DataSet update

Started implementation of ROI from EAM data.
dataSet updated

Updated the dataSet to feature a clockwise sorting of ROI points to
make the roi not look like some huge ball of scrawl.
dataSet updated

Updated the dataSet class with a final shiny polygonsort and excessive
use of blocks. The sort works for anything close to a convex hull, some
cases cannot work, but there's just nathing that can be done about them.