fix base item values - clay

[finndo77]

this is to update the values of clay and related crafting items

[finndo77]

this requires adding flowers and dyes, both of which are mostly missing. #24

[finndo77]

github is still having issues... the above comment is due to terracotta requiring dyes

[finndo77]

more number fudging here... to make the dyed terracottas i am going to add 1.00 to the terracotta value, as most of the dyes cost 8.00 (2 x 4.00 items crafted) and the recipe for dyed terracotta is 8 terracotta and 1 dye, this works out to an even +1. sometimes less complex is more.

[finndo77]

that made the dyed terracotta 3.50 and the glazed 4.00 (after adding "coal / 8")