Code documentation / high level walkthrough
Counterpart of gnome-terminal#364
I promised @rbanffy to write a high-level overview of VTE's codebase.
As long as it's a rough draft, just commenting in an issue is technically much simpler and quicker than to maintain a Wiki, so apologies for using this platform at the beginning. At some point ideally it should be converted to a nicely polished (set of) Wiki page(s).
ETA for the first big comment: a few days, weeks the most.