Added Spanish suttas

In the last few days I’ve added the Samyutta and Anguttara in Spanish, as well as Dhammapada, Udana, and Itivuttaka. I’ve also made a bunch of corrections to the Majjhima. In the next few days I’ll add the remainder of the main Khuddaka texts.

These texts are all sourced from Bosque Theravada, where Anton and his friends have put together a great Dhamma resource.