4 plots have been added. more could be added later depends on feedback
please test at http://localhost:3000/?noheader=1&gdccorrelation=1&filter0={%22op%22:%22in%22,%22content%22:{%22field%22:%22cases.primary_site%22,%22value%22:[%22brain%22,%22breast%22]}}, with master code, please let me know issues
url has a default filter to restrict case size and make the plot run faster. delete filter0= for much slower response