Multiline and text alignment support for GraphicsText

[pcantrell]

New features for GraphicsText:

• Include hard line breaks with newline characters (supports CR, LF, or CRLF):

  graphicsText.setText(“One fish\nTwo fish\n\nRed fish\nBlue fish”);

• Create word wraps (soft line breaks) by setting a wrapping width (wrapping is disabled by default):

  graphicsText.setWrappingWidth(120)

• Center or right-align text by changing the alignment:

  graphicsText.setAlignment(TextAlignment.CENTER);