[feature] Include support for IupScintilla

[rasteric]

Support for the IUP embedding of Scintilla would be extremely helpful for some use cases. It cannot be emulated with existing controls and allows for fast syntax coloring and advanced text editing functionality.

[gen2brain]

There will not be support for any additional controls. They all have heavy dependencies and they are not easy to include. Something could be done with static libraries, but then again base IUP must be built, much harder to maintain, will lose portability, etc. Anyway, scintilla is a very specific use case, not something that is often used, I would prefer to add a CD library instead (if I am to add) so matrix and cell can be used.

[rasteric]

That's a pity, although I understand the worry about dependencies. AFAIK, IUP Scintilla is the only way to get styled text / rich text editing, a basic functionality needed in many applications.

[gen2brain]

What is worse is that even if some additional library is added as a separate module, they all must link to the base IUP library, and what is now in the repo cannot be even used then. It is not possible to just import base lib to possible additional modules in order to link with it. I believe there is an open Go issue for that.