character settings

What a character is, as plain data: every setting a character has with its default (DEFAULT_CHARACTER), the slots it can wear (CHARACTER_SLOTS), the hair colour presets (HAIR_COLOURS), and where MakeHuman's body pack lives (hm08PackUrl(), versioned by HM08_PACK_VERSION). No engine and no DOM, so an exporter or another engine reads the same defaults the builder starts from; character and character-file use them.