- Changing the name PrepareForExecutionOnDevice to PrepareForExecutionImpl
- Adding changes suggested by Ollie and Ken to return the execution object
from PrepareForExecutionImpl using VirtualObjectHandle
- Updating PrepareForExecutionFunctor
- Adding API files
- Adding back Manish's BoundingIntervalHierarchy search structure
- Updating CMakeLists.txt to accomodate these changes
- Adding the old test file from Manish - won't build for now
-Changing the existing CellLocator.h to CellLocatorHelper.h,
it's used by CellLocatorTwoLevelUniformGrid.h
-Changing unit tests and worklets that use CellLocator.h to use CellLocatorHelper.h
Cell dimension for structured data is computed by subtracting Point dimensions
by vtkm::Id3(1). This fix prevents a dimension component from being less than
1 for 2D and 1D cases.