[PyMca] Percentages instead of mass fraction

[PyMca g. p. m. list. <pym...@li...>]

Dear Armando,   I use pyMCA to analyze elemental content in metal alloys. However, metallurgists are accustomed to using percentages instead of mass fractions. Would it be possible to add a switch to display the analysis result as a percentage?   To obtain the result in percentages, I slightly modified the program code, but not everyone knows how to do this.   Another interesting option would be the ability to normalize the results to 100%.   ---  Best regards,  Michał Olejnik  Poland