[open-philosophy] Added more authors to spreadsheet

[Jonathan Gray]

Just added some more names to the spreadsheet, including:

Albertus Magnus
Ibn Rushd (Averroes)
Ibn Sīnā (Avicenna)
Thomas Aquinas
Nicholas of Cusa
Philipp Melanchthon
John Calvin
Peter Ramus
Giacomo Zabarella
Nicolas Taurellus
Paracelsus
Jakob Böhme
Joachim Jungius
Johannes Clauberg
Ehrenfried Walther von Tschirnhaus

Lots and lots of works to add! :-)

-- 
Jonathan Gray
http://jonathangray.org