[FEATURE] Export embedded files from schematic or board

Currently if I embed a file into the schematic directly there is no way to access it from KiBot.  Something that would really helpful for documenting the design would be the ability to export certain embedded files from the schematic.  This way I can add a pdf, txt, or md file to my project then export it as part of the build to have the design documentation in the same place.


Thanks!
