Updated aiMetaData property number to size_t.
Updated DoValidation to support size_t.
Updated DoValidation() implementation to support size_t.
Updated ASSIMP_strincmp to support size_t.
Updated CompareArrays to support size_t.
Updated AllIdentical() to support size_t.
Updated PretransformVertices to support size_t.
Parameterized the size type for ArrayBounds.
Mesh indices and utility functions are now size_t.