Changes from Mercurial (hg https://foss.heptapod.net/isa-afp/afp-devel/ default)
Summary
- merge from afp-2021-1
- tuned;
- tooling: added utility to check for metadata consistency;
- regenerate website;
- site: generate multi-line json for smaller merges;
- toml module: proper parsing of quotes in multiline strings;
- added further sitegen generated websites
- added metadata for Real_Time_Deque's, sitegen
- new entry: Real-Time Double-Ended Queue