Move both theme images and models back to trunk/Identity/Themes
directory structure:
- Themes are made of several motifs and several models which are
combined among themselves. Such combination can't be achived if
the motifs and the models are punt in different parent
directories like `trunk/Identity/Images' and
`trunk/Identity/Models'.
Inisde `trunk/Identity/Images/ and `trunk/Identity/Models/' we
produce one image from one design model; that's all. What we
want to achive with the theme concept doesn't fit in such
configuration so it needs to be moved apart from it. That's why
we need to keep the `trunk/Identity/Themes'. We cannnot handle
theme-specific rendition as we do with general-purpose
rendition or the oposite. Both configuratio need to be clearly
separated one another.