Streamlit-folium

Adds zoom level as one of the properties returned on interaction with st_folium

What's Changed
* Get map zoom by blackary in https://github.com/randyzwitch/streamlit-folium/pull/39


**Full Changelog**: https://github.com/randyzwitch/streamlit-folium/compare/v0.6.2...v0.6.3

34 highlighted that some features weren't working as expected, which was determined to be at least partially due to missing JS dependencies inside the iframe. This release fixes that.

This release adds bi-directional support via the `st_folium` function. When calling `mapdata = st_folium(m)`, a dict will be returned back to Python with the bounding box and other click data. Improved documentation will come in a future release as time allows, but you can see the `examples` folder for ideas of how to use this new functionality.

What's Changed
* Make component bidirectional by blackary in https://github.com/randyzwitch/streamlit-folium/pull/28
* Fix manifest, bump version by randyzwitch in https://github.com/randyzwitch/streamlit-folium/pull/29
* Fix manifest by randyzwitch in https://github.com/randyzwitch/streamlit-folium/pull/31
* Add support for getting all drawn objects on the map by blackary in https://github.com/randyzwitch/streamlit-folium/pull/32

New Contributors
* blackary made their first contribution in https://github.com/randyzwitch/streamlit-folium/pull/28

**Full Changelog**: https://github.com/randyzwitch/streamlit-folium/compare/v0.5.0...v0.6.0

Add support various other drawn objects

Test of building the bi-directional component and submitting to PyPI.

USERS SHOULD NOT USE THIS VERSION UNLESS YOU UNDERSTAND WHAT THIS MEANS

Release moves required version of Streamlit >= 1.2 to ensure memory improvements are incorporated, adds Branca rendering, fixes CI by pinning dependencies closer