allow tabula-java's extraction-method type of "basic"
allow tabula-java's extraction-method type of "basic"

along with the alreaedy-existing "spreadsheet", "original"
and now adding "lattice" and "stream" too

tabulapdf/tabula,newsdev/tabula,tabulapdf/tabula,newsdev/tabula,newsdev/tabula,tabulapdf/tabula