Example elements validated:

 - [C]     : Missing .c source file
 - [CAT]   : Not a recognized category
 - [INFO]  : Inconsistent example header info (stars, author...)
 - [PNG]   : Missing screenshot .png
 - [WPNG]  : Invalid png screenshot (using default one)
 - [RES]   : Missing resources listed in the code
 - [MK]    : Not listed in Makefile
 - [MKWEB] : Not listed in Makefile.Web
 - [VCX]   : Missing Visual Studio project file
 - [SOL]   : Project not included in solution file
 - [RDME]  : Not listed in README.md
 - [JS]    : Not listed in Web (examples.js)
 - [WOUT]  : Missing Web build (.html/.data/.wasm/.js)
 - [WMETA] : Missing Web .html example metadata