Expand searchPfam to include other items from InterPro

[jamesmkrieger]

It looks like it's also possible to get Interpro families and Pfam families together, so we probably want to rename our function to searchInterproAndPfam and make it do that and then wrapper functions for getting the individual ones called searchPfam and searchInterPro. There would be arguments in the main function for returning each of them.

An example tsv is at https://www.ebi.ac.uk/ebisearch/ws/rest/interpro7?query=P19491%20AND%20(source_database%3Ainterpro%255E2%20OR%20*%3A*)&format=json&fields=description,name,source_database