First reason for CInnerConvertor was to have function in it with iconv/FriBiDi types so we can include headers only in .cpp and leave .h without iconv and FriBiDi includes.
As CInnerConvertor is static too, I can move all member(except "convert()", "logicalToVisualBiDi()" and m_stdConversion[]) to outer class.

This will save extra wrapper functions and make thing plainer.