[NTG-context] Wiki update: create a .vsix extension package for VisualStudio Code (or VSCodium)

[mf]

Hello list,

I just added some instructions to the WIKI to build an extension file 
for VSCode, starting from the code you find in the LMTX installation at

tex/texmf-context/context/data/vscode/extensions/context

You find them at

https://wiki.contextgarden.net/VSCode

Massi