* Clean up code: Easier to understand/maintain.
Also:
Reduce line count for code.
Add namespace (module) to use shorter function/variable names.
Improve auto-generation of readers/writers for arbitrary structs.
Remove a few manually-written readers/writers for simple structs.
Write Plots.jl version -> VERSION_INFO to help user identify reader of outdated file formats.
Add support for:
- Arrow
- ColorScheme, ColorPalette
- ContinuousColorGradient, CategoricalColorGradient
- datetimeformatter
* Update precompile_*.jl file
Co-authored-by: ma-laforge <ma-laforge@users.noreply.github.com>
