- hide from toc
- split into "current" extensions, and extensions that have been since
deprecated by a better alternative
- make core promotion list generated
- add information to extension appendix about possible better
alternatives
- split contacts to separate lines
- some general-purpose quality improvements to the script
associated material at the top level, vk.xml and associated material in
xml/, and generated include and source files in include/vulkan/ and
src/ext_loader/, respectively (public issue 436).
Petr Kraus
Jon Leech