Phoenix Fission packside implementation

[Xefyr0]

The biggest feature of 0.14: Replace Nuclearcraft: Neoteric with Phoenix Fission.

• Scripting work needed to define Fission Reactor components
• Revise fuel options
• Implement custom fission multiblock(s)
  • Implement recipes for it
• Implement Superheated Steam Turbine
  • Implement recipes for it
• Implement something akin to a Heat Exchanger
  • Implement recipes for it
• Lang work for new recipe types, items, fluids, blocks, etc.
• Eliminate Nuclearcraft: Neoteric but make replacements and deprecation pipeline entries for items we want to keep (e.g. S'mores and certain plates)
• Hide unused portions of Phoenix Fission
• Texture/model work for reactor casings & components
• Playtesting and balancing
• Quests for new Phoenix Fission machines & functionality
• (Optional) Implement Hafnium/Zirconium line for advanced reactor variant(s)
• (Optional) Consider and implement uses for Molten Salt Reactor and/or Breeder Reactor with Breeding Blankets
• (Optional) Implement Heat Exchanger to go alongside Thermoelectric Generator and SHST
• (Optional) Implement "Decay Accelerator" for players to convert radioisotopes into other materials through radioactive decay