API C ArtifactUI.GetTotalPowerCost

Needs summary.
 totalArtifactPowerCost = C_ArtifactUI.GetTotalPowerCost(startingTrait, numTraits, artifactTier)
==Arguments==
:;startingTrait:
:;numTraits:
:;artifactTier:
==Returns==
:;totalArtifactPowerCost:
==Patch changes==