Command Argument Library Reborn

It ain't no drag. CAL got a brand new bag. Stable, open source, and not going away. Why CAL CAL is different from most argument parsers CLI definition requires almost no knowledge of the library - there are no available options. Help screens, manual pages and completion scripts are rendered from arrays of show elements and show macros - not from fixed templates. CAL has separate modules for macro-based CLI definition, struct-based CLI definition, help screen rendering, manual page r...