Function applyGridShift

applyGridShift(
    source: ProjectionTransform,
    inverse: boolean,
    point: VectorPoint,
): void
Apply a grid shift given the source projection (assums a nadgrid has been set up)
Parameters
- source: ProjectionTransform
  source projection
- inverse: boolean
  if true, the grid shift is applied in reverse
- point: VectorPoint
  the point to apply the grid shift
Returns void