32. Hello TOFU font - WebKit porting to Mona OS

Succeeded showing TOHU font, which is just a filled rectangle.
The reason why no fonts was shown is FontMetrics::height() returned always zero.
We should have set ascent and descent on SimpleFontData::platformInit as follows.

void SimpleFontData::platformInit()
{
    m_fontMetrics.setAscent(10);
    m_fontMetrics.setDescent(10);