VectorReader
- VectorReader:
- A block used to fill entries of a single Field from values in a vector. 
VectorReader Kinds
- kind (required string)
- One of: 
<VectorReader phiReader>
  kind = fieldVectorReader
  minDim = 0
  writeField = phi
  writeComponent = 0
  lowerBounds = [  0  0  0]
  upperBounds = [NXP NY NZ]
  componentBounds = [0 1]
</VectorReader>