added edge solbel

Signed-off-by: Diogo C. Luvizon <diogo@luvizon.com>
added functions to calc the min eigenvalue

Signed-off-by: Diogo C. Luvizon <diogo@luvizon.com>
fixed gstreamer-element properties

Signed-off-by: Diogo C. Luvizon <diogo@luvizon.com>
removed square from edge

Added debug file.
Edge filter and Eigenvalues working.

Signed-off-by: Diogo C. Luvizon <diogo@luvizon.com>