Rename EntryPoints to Entrypoints
Clarification and motivation
Lorentz.EntryPoints and in some other places we have entrypoints spelled as "EntryPoints". In contradicts Tezos docs which I think it slightly bad. I think we should use the same spelling.
I think we should at least fully finish TM-280 before doing that.
The letter "p" in the word "entrypoints" shouldn't be capitalized anywhere.