Webscrape of Ameriflux and FLUXNET sites -> BETY sites

Scripts add all Ameriflux and FLUXNET sites that are not already sites as well as any ancillary data provided on these websites. Script has been run on psql-pecan.bu.edu so doesn't have to be run elsewhere (these should propagate through database syncs and adding them elsewhere would result in redundant sites and conflicts). Script and output file should be updated periodically in order to ensure we catch new sites coming online.