End improvements

Additions:

-Chorus boats

-Ender chest boats

-Minecart with ender chest

-Every item has got it's tags updated

-Crashed ship generation has been tweaked

-Made mod items group with similar items in the recipe book

-some work in progress items have been added (only avaiable via commands or creative menu*)

Bug Fixes:

-Armor not being able to be upgraded to enderite has been fixed

-Enderite Upgrade template not spawning has been fixed

-Fixed chorus stairs recipe giving out the wrong number of stairs