Dirty Changes

• Refactor all necessary bool to types.Bool (*bool)
• Change all functional fields to types.FuncStr (string)
• Move PageConfiguration out from opts.Initialization
• Split configs for easy structure maintain

Features

• Support listening events via event.Listener
• Expose echarts instance via %MY_ECHARTS%
• Support expose render content for image extension
• Does beta release, and WIP
• Expose charts.WithSeriesOpts for series config in case of WithX helper functions missing some opts in charts.