Separated the results of fit in 2 attributes
Separated the results of fit in 2 attributes

The first is p_, which contains the parameter vector. Next, is
estimate_, which contains a possibly formatted version of the estimate.
This way, I can overwrite fit when subclassing to transform the
parameter vector into something more useful (like something from
mesher).

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