Feature Request: Combination of Candle Stick Chart With Option Chain Pyramid

Many Traders Looking For This Feature Where Option Chain Pyramid Need To Plot On Candle Stick Chart

I Attempted This With Small Piece of Code. Please Take a Look.

```
Call = vb['call']
Put = vb['put']
width = 0.4
fig, axlist = mpf.plot(df,type='candle', returnfig=True, tight_layout=True, volume=True, style="yahoo",)
size = 0.0012 * max(df['Close'])
pyramid = fig.add_axes(axlist[0].get_position())
pyramid.set_axis_off()
pyramid.set_xlim(right=1.2*max(Call.values))

pyramid.barh( Call.keys().values, Call.values,height=0.02*size, color='red', alpha=0.20)
pyramid.barh( Put.keys().values+width, Put.values,height=0.02*size, color='green', alpha=0.20)
pyramid.invert_xaxis()
mpl.show()
````

No repository file or test is named; start by reviewing the current mplfinance candle-chart plotting entry points and the provided Matplotlib overlay example. Define the supported option-chain data and the expected combined chart behavior before identifying what tests would demonstrate that the feature is complete.

Written by the indexing model from the issue text.