Add logic/rules to the generator#13

Other tools like fair.xyz offer logic like:

• Always combine attribute 1 of trait A to attribute 2 of trait B

• Attribute 1 of trait A cannot be combined with attribute 2 of trait B.

All the rules get applied during the generation of the images. While I was testing fair.xyz we had over 60 of those rules in use. Because we have traits like gender, pose, class, chest, weapon we need to take care that the right attributes are combined together.

Example: the class witch is female only and can use only staffs and daggers and has a different pose than the other two classes and therefore has a different chest.