Create a new subcategory "design/architecture/time"
and rearrange several pages related to time handling and time codes.
NOTE: starting with this changeset, a ''Link-Farm'' is required for cross-links;
since we don't have an automatic solution for this task yet, I have created
the necessary forwarding pages manually in the website repository.
- polish the text in the TiddlyWiki
- integrate some new pages in the published documentation
Still mostly placeholder text with some indications
- fill in the relevant sections in the overview document
- adjust, expand and update the Doxygen comments
TODO: could convert the TiddlyWiki page to Asciidoc and
publish it mostly as-is. Especially the nice benchmarks
from yesterday :-D
