wxWidget-based extra components

wxx : wxExtra

each extra component is a separate repo, added as a submodule here

1. wxthings : a variety of data containers and controls
   • https://sourceforge.net/projects/wxcode/files/Components/wxThings/
   • mods to copied code https://github.com/externpro/wxthings/compare/v2006.04.28...dev
2. wxplotctrl : interactive xy data plotting widgets
   • https://sourceforge.net/projects/wxcode/files/Components/wxPlotCtrl/
   • mods to copied code https://github.com/externpro/wxplotctrl/compare/v2006.04.28...dev
3. wxTLC : a multi column tree control
   • https://sourceforge.net/projects/wxcode/files/Components/treelistctrl/
   • mods to copied code https://github.com/externpro/wxTLC/compare/v1208...dev

wxWindows Library License http://wxcode.sourceforge.net/