Add wpArrayRemoveSwapEnd

CHANGELOG.md

@@ -25,6 +25,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - `wpPrngSplitmix64Init`, `wpPrngSplitmix64InitWithSeed`, `wpPrngSplitmix64`, `wpPrngSplitmix64InRange`, `wpPrngSplitmix64Choice`
 - `wpStr8Clear`
 - `wpArrayZero` to zero all elements in an array without setting the count to 0
+- `wpArrayRemoveSwapEnd` to remove an array element using its index and swap the last element in
 
 ### Changed