Added benchmark for equivalent layers
Added benchmark for equivalent layers

mtb-za/fatiando,victortxa/fatiando,eusoubrasileiro/fatiando_seismic,victortxa/fatiando,eusoubrasileiro/fatiando_seismic,drandykass/fatiando,mtb-za/fatiando,cmeessen/fatiando,fatiando/fatiando,eusoubrasileiro/fatiando,cmeessen/fatiando,rafaelmds/fatiando,rafaelmds/fatiando,santis19/fatiando,santis19/fatiando,eusoubrasileiro/fatiando,drandykass/fatiando,eusoubrasileiro/fatiando,fatiando/fatiando