Exemplo de gráfico de Gantt no modelo de Projeto de pesquisa

```
Which component is your suggestion addressed to?
[ ] class
[ ] packages
[ ] bibliography style
[ ] documentation
[X] examples
[ ] other: _____________

What is you suggestion?
Adicionar exemplo de gráfico de Gantt no modelo de Projeto de pesquisa
http://latexbr.blogspot.com.br/2014/04/grafico-de-gantt-com-pgfgantt.html

Additional information:
{{{
\documentclass{standalone}
\usepackage{pgfgantt}

\begin{document}

\begin{ganttchart}[y unit title=0.4cm,
y unit chart=0.5cm,
vgrid,hgrid,
title height=1,
bar/.style={draw,fill=cyan},
bar incomplete/.append style={fill=yellow!50},
bar height=0.7]{1}{24}
\gantttitle{Maio}{12}
\gantttitle{Junho}{12} \\
\gantttitlelist{20,...,31}{1}
\gantttitlelist{1,...,12}{1} \\
\ganttbar{Fase 1}{3}{7} \\
\ganttbar{Fase 2}{7}{12} \\
\ganttbar[progress=70]{Fase 3}{13}{18} \\
\ganttbar[progress=40]{Conclus\~ao}{20}{24} \\
% rela\c c\~oes
\ganttlink{elem0}{elem1}
\ganttlink{elem1}{elem2}
\ganttlink{elem2}{elem3}
\end{ganttchart}

\end{document}
}}}
```

Original issue reported on code.google.com by `laurocesar` on 22 Apr 2014 at 4:27