Remove testing include from ZFP worklet headers

Several of the ZFP worklet headers included `vtkm/cont/testing/
MakeTestDataSet.h`. This is a problem because if testing is turned off,
then `MakeTestDataSet.h` attempts to include a file that is not
generated, so the compile just fails if testing is off (and the testing
library is not on). This include must be a remanent of some old testing
code during development. It can be safely removed.

docs/changelog/no-testing.md

@@ -0,0 +1,9 @@
+# Fix compile when testing is turned off
+
+There were some places in VTK-m's code that included test header files even
+though they were not tests. As more code goes into libraries, this can
+break the build.
+
+Remove VTK-m library dependence on testing code where found. Also added a
+CI build that turns off all testing to check for this condition in the
+future.

vtkm/filter/zfp/worklet/ZFP1DDecompress.h

@@ -17,7 +17,6 @@
 #include <vtkm/cont/ArrayHandleCounting.h>
 #include <vtkm/cont/AtomicArray.h>
 #include <vtkm/cont/Timer.h>
-#include <vtkm/cont/testing/MakeTestDataSet.h>
 #include <vtkm/filter/zfp/worklet/zfp/ZFPDecode1.h>
 #include <vtkm/filter/zfp/worklet/zfp/ZFPTools.h>
 #include <vtkm/worklet/DispatcherMapField.h>

vtkm/filter/zfp/worklet/ZFP2DDecompress.h

@@ -17,7 +17,6 @@
 #include <vtkm/cont/ArrayHandleCounting.h>
 #include <vtkm/cont/AtomicArray.h>
 #include <vtkm/cont/Timer.h>
-#include <vtkm/cont/testing/MakeTestDataSet.h>
 #include <vtkm/filter/zfp/worklet/zfp/ZFPDecode2.h>
 #include <vtkm/filter/zfp/worklet/zfp/ZFPTools.h>
 #include <vtkm/worklet/DispatcherMapField.h>

vtkm/filter/zfp/worklet/ZFPDecompress.h

@@ -17,7 +17,6 @@
 #include <vtkm/cont/ArrayHandleCounting.h>
 #include <vtkm/cont/AtomicArray.h>
 #include <vtkm/cont/Timer.h>
-#include <vtkm/cont/testing/MakeTestDataSet.h>
 #include <vtkm/filter/zfp/worklet/zfp/ZFPDecode3.h>
 #include <vtkm/filter/zfp/worklet/zfp/ZFPTools.h>
 #include <vtkm/worklet/DispatcherMapField.h>