Translated two of the scripts, translated audio files & made some notes.

I've translated:
-es_tictactoe.py into tateti.py & deleted the original file.
-es_dodger.py into evasor.py & deleted de original file.
-es_gameover.wav into juegoterminado.wav

I've added:
-A README.md in the ../src folder to make annotations without mixing them with annotations for chapters translations.
-A glosario.txt to serve as a reference to all Spanish translators so we all translate coherently. I talked to @alfredocarella and agreed this was a good way to set ground rules.
-Added my contact info in the SPECIAL_THANKS file.
-Edited the ../es/README.md because our names were on the same line.

@asweigart any suggestion is welcome.