New CIE XYZ functions transformed from the CIE (2006) LMS functions

I added the new CIE2006 XYZ CMFs for 2° and 10° observers (proposed) transformed from the official CIE (2006) physiologically-relevant LMS fundamental colour matching functions. These LMS CMFs are based on the Stiles and Burch datasets. Details about the LMS to XYZ transformation can be found here:

http://www.cvrl.org/database/text/cienewxyz/cie2012xyz2.htm
http://www.cvrl.org/database/text/cienewxyz/cie2012xyz10.htm