cwGraph: Generate Bar, Pie, Line graph images

cwGraph class to use the methods of pChart to create fast charts
with basic knowledge of pChart library.

pChart library is required for usage.

This provides a layer of abstraction for other libraries but only 
pChart was implemented.

In the example directory can be found a basic example that I got
from old code using this class.

Example in:
src/php/example/example.php

Source in:
src/php/cwGraph.php

2 class's exists:

cwGraph

cwFont