Add rospeex (cloud-based speech recognition/synthesis package) to groovy...

## Abstract
Rospeex is a cloud-based multilingual speech communication package. The package allows the users to add speech recognition/synthesis functionality to their robots. Rospeex supports speech recognition and speech synthesis of Japanese, English, Chinese, and Korean. You can create a function of a simple interaction around 10 line implementation by using rospeex APIs (Python, C++). 

## Sample codes
Sample codes are available at http://rospeex.org/top/