Support cryptokitties in XML

[bitcoinwarrior1]

Once apps can support erc721, we should create an XML for them based of the encodings they currently have.

Only one fourth of the byte32 is used to represent a kitty's look.

bits: 012340123401234012340123401234012340123401234012340123401234012340123401234012340123401234012340123401234012340123401234012340123401234012340123401234012340123401234012340123401234012340123401234012340123401234012340123401234012340123401234
blok: 0    1    2    3    0    1    2    3    0    1    2    3    0    1    2    3    0    1    2    3    0    1    2    3    0    1    2    3    0    1    2    3    0    1    2    3    0    1    2    3    0    1    2    3    0    1    2    3    

mask: 000000000000000111110000000000000001111100000000000000011111000000000000000111110000000000000001111100000000000000011111000000000000000111110000000000000001111100000000000000011111000000000000000111110000000000000001111100000000000000011111

mask for the first kattribute is body:
      000000000000000111110000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000

Data refered to from this table:
https://medium.com/@kaigani/the-cryptokitties-genome-project-on-dominance-inheritance-and-mutation-b73059dcd0a4

[bitcoinwarrior1]

XML not used for cryptokitties