Build libgltf (and freetype) for iOS, too
Build libgltf (and freetype) for iOS, too

They won't be used for now, but just to enforce portability of the
libgltf code a bit.

Change-Id: Ie5d2b9125eb0f4a2e432dcb8b55d5f494a5ed34d

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core