[RFC] Better icons

[rousseldenis]

Quite an easy (not so finally) enhancement for a better user experience and making GO interface a little bit more modern.

I've tested a little bit the Material Design icons provider for wxWidgets and the result seems cool:

I try to manage a way to benefit from the library in the project without increasing executable size (maybe the only solution is to make static char as in current implementation).

[rousseldenis]

https://www.wxwidgets.org/news/2023/11/modern-icon-sets-wxartprovider-released/