Misc · Terms and notices: licenses, consent and a cookie banner

misc::LicenseViewer lists what a product ships with each license beside
the chosen one's text. misc::ConsentDialog asks for a box before Accept
and answers each way out once, accept or decline. misc::CookieBanner
takes Accept all, Reject all, or a switch per kind through Choose, which
turns into Save choices on its focus. ChangeLog Viewer points to
data_display::Changelog.

src/misc/tests/mod.rs

@@ -15,6 +15,7 @@ use crate::{
 
 mod asking;
 mod codes;
+mod notices;
 mod numbers;
 
 struct Stage {