Add OnObtainAllSkillsShuffleItem

[AlexKnauth]

Add OnObtainAllSkillsShuffleItem, and have it set an item variable to the name of the item before it splits, then set item back to blank after it splits.

Then make a splits file with 19 of these for the 19 required items, and run All Skills Shuffle!

The 19 required items are:

1. Fireball
2. Dash
3. Claw
4. Wraiths
5. Dive
6. CDash
7. DDark
8. DNail
9. Cyclone
10. Shade Soul
11. Lurien
12. Dash Slash
13. Isma's
14. Wings
15. Shade Cloak
16. Shriek
17. Great Slash
18. Monomon
19. Herrah

[AlexKnauth]

I started working on a branch here: https://github.com/AlexKnauth/hollowknight-autosplit-wasm/tree/OnObtainAllSkillsShuffleItem

Of the 19 items, only 11 of them are working:

• Dash
• Fireball
• Claw
• Isma's
• CDash
• Great Slash
• Wings
• Dash Slash
• Shade Soul
• Cyclone
• Shade Cloak

And the remaining 8 are not working:

• Wraiths
• Dive
• DDark
• DNail
• Lurien
• Shriek
• Monomon
• Herrah

[AlexKnauth]

After testing it again after https://github.com/AlexKnauth/hollowknight-autosplit-wasm/commit/51c54dd2af147c0b02b35db5692adce0adcc1765, that seems to have fixed it.