Core/Spells: Scripted some Shaman Spells:

- Ancestral Resolve
- Unleash Elements
- Spirit Link
```c++
void Absorb(AuraEffect * /*aurEff*/, DamageInfo &dmgInfo, uint32 &absorbAmount)
```
--->
```c++
void Absorb(AuraEffect * /*aurEff*/, DamageInfo &dmgInfo, uint32& absorbAmount)
```