Wx EmptyImage, BitmapFromImage deprecated in favor of Image and Bitmap

[rahulporuri]

https://github.com/enthought/enable/blob/588cde79a0e7099e2c0368d3e8e2e3664a296e61/kiva/agg/src/x11/plat_support.i#L114-L116

https://github.com/enthought/enable/blob/685038503500ecf8ffc30f3da68c7e848ae02e6f/kiva/cairo.py#L97-L99

First reported by @fred4ets in https://github.com/enthought/chaco/issues/531#issuecomment-740546173

[rahulporuri]

Ref https://wxpython.org/Phoenix/docs/html/wx.Bitmap.html#wx.Bitmap, https://wxpython.org/Phoenix/docs/html/wx.functions.html#wx.BitmapFromImage and https://wxpython.org/Phoenix/docs/html/wx.Image.html#wx.Image, https://wxpython.org/Phoenix/docs/html/wx.functions.html#wx.EmptyImage

[rahulporuri]

@fred4ets you're welcome to open a Pull Request that fixes this issue. Do you have experience submitting PRs? Are you interested in contributing and do you have the time to contribute?

[fred4ets]

Hello,

I don't have any experience with PRs.

And I'm afraid I don't have the requested skills to dig in wx code.

But I would be happy if I could contribute, for sure.

Regards