Expanded stats tracking

[cassidoxa]

This is a (for lack of a better term) tracking issue for things we could track in the ROM and SRAM but currently don't. These are just ideas and suggestions collated here so they're not lost to the aether. Here's a quick list of things from a discussion in the TARC server:

• We could have a general Y-item handler for all Y-item uses.
  • Could also track things like arrows fired separately
• Mirror Bonks
• Hover frames