[SMN] Add option to replace Emerald Ruin III with Ruin III

[GayPotatoEmma]

Figured I'd try my hand at implementing #41 myself, seems to work fine. Any feedback is appreciated.

[zbee]

Would like to see the restrictions on level and GCD actually put into the code.

[GayPotatoEmma]

Would like to see the restrictions on level and GCD actually put into the code.

I'll have to see if I can figure out how that is done for the GCD, for the level itself it won't actually matter anymore since I've made it so it doesn't override Emerald Rite (the upgraded version from level 72 onwards).

Edit: Just ran some calculations, even the GCD note might be redundant infact as Ruin III would need a +/- 3s GCD to be worse than Emerald Ruin III. So I may remove that note completely

[Genesis-Nova]

The code for it looks fine, but I'd move it down to right above gemshine's place, which is line 733. the // Gemshine line

[Taurenkey]

This will require a small rewrite.

• Remove checking what Gemshine is, favour checking the gauge for how much attunement is left instead (you're already checking if Garuda attuned so this won't be an issue for other attunements)
• Add a trait check for Ruin Mastery III (ID 476) to ensure it's used before Emerald Rite since at that point it becomes a DPS loss.
• Rewrite the feature description to outline this.