Input a Streamlit object

[rudolecky]

Would it be possible to add a stremlit object, as a parameter to the function, to which a plot would be rendered?
First reason for that is when you use click event to navigate among pages and the plot stays on a page even when you switch to page, where it shouldn't be. Second reason is to use streamlit columns for interactive plots.

[domoritz]

Great idea. Please send a pull request.