Added standalone scatter function
Added standalone scatter function

- Simple scatter plot for array data
- Added parsing of color information

garretstuber/lightning-python,garretstuber/lightning-python,peterkshultz/lightning-python,garretstuber/lightning-python,peterkshultz/lightning-python,peterkshultz/lightning-python,lightning-viz/lightning-python,lightning-viz/lightning-python