Adds three new modifiers to Tinker's Construct and all applicable addons: Diving Helmet, Backtank, and Diving Boots. 
The Diving Helmet modifier works as create's Copper Diving Helmet, until you add an additional fire resistant modifier, e.g. Netherite/Worldbound, in which case it now acts as a Netherite Diving Helmet.
The Backtank modifier allows you to place your chestplate down and interface with Create Kinetics, as for a Copper Backtank, and can store 1200 air per level, for six levels, for up to 2 hours of continous breath. As with the Diving Helmet, it will not provide breathable air in lava or fire unless augmented with a fire-resistant modifier.
The Diving Boots modifier makes your boots function as Create's Copper Diving Boots, including belt immunity. When augmented with a fire resistant modifier, it allows for fast falling and swimming in lava.
When all four pieces have a fire resistant modifier, the helmet has Diving Helmet, and the chestplate has useable air, you are fully fire resistant, as you would be with Create's Netherite Diving Gear.
Now complete.
