func (ar *AsciiRender) Render(str string) (string, error) {
	return ar.RenderOpts(str, NewRenderOptions())
}
Render renders a string with the default options
Calls the RenderOpts method with a new RenderOptions object
package figlet4go
type RenderOptions struct {
	FontName string
	FontColor []Color
	Parser Parser
}
func NewRenderOptions() *RenderOptions {
	p, _ := GetParser("terminal")
	return &RenderOptions{
		FontName: defaultFont,
		Parser:   *p,
	}
}
type AsciiRender struct {
	fontMgr *fontManager
}
func NewAsciiRender() *AsciiRender {
	return &AsciiRender{
		fontMgr: newFontManager(),
	}
}
func (ar *AsciiRender) LoadFont(fontPath string) error {
	return ar.fontMgr.loadFontList(fontPath)
}
func (ar *AsciiRender) LoadBindataFont(fontBinary []byte, fontName string) error {
	return ar.fontMgr.loadBindataFont(fontBinary, fontName)
}