SI unit length metric without prefix should be valid

[GoogleCodeExporter]

SI unit for metric length should be valid even if there is no "IfcSIPrefix" as 
it is optional. If it is not there then unit scale factor of 1.0 should be 
valid.

In UnitConvrter.cpp in function 
void UnitConverter::setIfcProject(shared_ptr<IfcProject> project)()
{
..
..
..
if( unit_type->m_enum == IfcUnitEnum::ENUM_LENGTHUNIT )
{
    if( si_unit->m_Prefix )
   {
    ...
    ...
     length_factor_found = true;  // Move this outside of this scope
   }

  length_factor_found = true;  // Should be here
}
..
..
..
}


..
..
..
}

Original issue reported on code.google.com by sajlo...@gmail.com on 8 Jan 2015 at 3:58