Various Fission Reactor fixes

[loxoDev]

What

This largly fixes numerous NPEs that stem from non robust code.

Implementation Details

Instead of a single boolean to represent the locking state of the reactor, an enum has been added that contains more detailed information. Now, internally, the reactor only counts as locked after the locking logic has correctly been run. Before, the boolean indicated that both the reactor should lock and it already is locked, which caused an issue when the reactor started ticking before the locking logic running.

Outcome

• No longer allows invalid reactor configurations to lock to prevent NPEs
• Makes the coolant export hatch create a fluid tank correctly
• Circumvents a cyclical references with the coolant property for distilled water
• Syncs up the fuel rod handling
• The fuel depletion of the reactor is set to one initially to make it take rods after starting up
• Non-square reactor layouts (reactors with an inner diameter > 3 blocks) no longer cause null pointer exceptions
  when working with the square layout array
• The locking now correctly determines the area that it needs to check for calculation of the reactor layout
• The heatRemoved attribute representing the cooling of the reactor no longer accumulates across multiple ticks.

[htmlcsjs]

code looks good otherwise