BaseTools has been duplicating and adapting code that is defined in
MdePkg and MdeModulePkg. This leads to desync issues where the same
symbols may be backed by different functions with slightly different
semantics and also fixes that apply only to BaseTools or only to MdePkg
and MdeModulePkg.
To address these issues, update BaseTools/Source/C to utilize the code
from MdePkg and MdeModulePkg.
Signed-off-by: Marvin Häuser <mhaeuser@posteo.de>
