Worked on chem element enum some more

Added room phase state to each as well classification to each. Generally
will not be used as much though i might handle how each work as a fluid.
Added all the densities for the elements

Well at least for those that actually have densities. Some of these
element are man made and don't really exist. So i assume there density
has never been measure or are not public knowledge yet. Either way i
have no use for most of this data so it doesn't bother me. The data i
need is the common elements the rest was just added to have a complete
periodic element list.