Correct bug in estimRYRep and getMixturesPerGeno (name clash).
Allow estimRYMRep to use mixing proportions.
Allow RYP to use densities instead of proportions
Improve getDesignBinaryVarMix and getDesignBinaryCropMix for unbalanced cases.
Use tmbutils::array in C++ to work with RcppEigen updated for Eigen v5.
Add tests.
Minor corrections and improvements in the documentation.