Kivy-matplotlib-widget

Correctly fix mouse scrolling with subplot (sorry)

Fix mouse scrolling with subplot

- New widget
Add MatplotFigureSubplot to handle all kind of Matplotlib figures (use also mplcursors tool). See example https://github.com/mp-007/kivy_matplotlib_widget/tree/main/examples/example_4_differents_subplot

-Fix
Add new compatible fix (matplotlib 3.8) for graph_widget_general.py and graph_widget_3d.py.

-Feature
Add new tools features. Include new general cursor based on mplcursors project. (see example https://github.com/mp-007/kivy_matplotlib_widget/tree/main/examples/example_mplcursors)

Remove resize_event() to be compatible with matplotlib 3.8

New tag compare hover
Add more options with legend widget (font size and box height)
handle all matplotlib scale for pan/zoom behavior (ex: symlog, log and logit)

Fixes:
Handle nan and masked values with cursor/hover
Fix compare hover with negative x value
Some bugs fix with twinx widget and scatter widget
correctly update cursor when snap on right axis value and change ymin or ymax (ex: using interactive axis on right axis)

other:
new example to add custom touch widget into your matplotlib graph (example_custom_touch_widget)