Added test to generate the confusion matriz
Added porcentual confusion matriz

Also added to only detect one image aand it must be the biggest
Created confusion matriz from i=0 to i=k nearest
The ConfusionMatrixTest print a <table> tag
add 1 to the nearest student except that the student to recognize is into the K nearest.
changes on tests
Merge pull request #11 from mauroponce/feture-confusionMatriz

Feture confusion matriz