Changed ModelCenterCalculator so that only the first three fiducial positions are used

(until the Least Squares Method is implemented)
Added collapsing of arrays for when multiple cameras see the same fiducial
Moved determinant calculation to Matrix class and fixed it.
Changed settings for 2 cameras
Fixed scaling for block display
Removed the row interchange count (it was dodgy). Use the matrix's determinant function instead.
Added determinant calculation function
Added debug output.
Changed The ratios of the error calculation

Squared  the distance error. 0.001 of linear distance to camera