add iansan

[imring]

• New character package
• Config in character package
• Run pipeline with added config (generates character curve, talent stats, .generated.json files)
• Character key
• Shortcuts for character key
• Update mode_gcsim.js with shortcuts for syntax highlighting
• Add Character package to imports
• Normal Attack
• Charge Attack / Aimed Shot
• Skill
• Burst
• A1
• A4
• C1
• C2
• C3
• C4
• C5
• C6
• Other necessary talents (custom dash/jump, low/high plunge, ...)
• Hitlag
• ICD
• StrikeType
• PoiseDMG (blunt attacks only for now)
• Hitboxes
• Attack durability
• Particles
• Frames
• Update documentation
• Xingqiu/Yelan N0 (optional)
• Xianyun Plunge (optional)

[ErrorRaffyline0]

I think I speak for everyone when I say it is expected that any maintainer working on this PR would give up early on, when being hit with the realization that 90% of Iansan's kit relies upon implementing movement values for hundreds of character animations. But thanks for trying at least. ❤