Calculate Sigma_ee and Sigma_uu matrices

calc_sigma(eval, D_l, X, OmegaU, OmegaE, UltVeh, Qi)

## Arguments

eval |
eigenvalues vector from decomposition of relatedness matrix |

D_l |
vector |

X |
design matrix |

OmegaU |
matrix |

OmegaE |
matrix |

UltVeh |
matrix |

Qi |
inverse of Q matrix |