[VTK-5069] Tokenize 'q' parameter in QueryHandler
[VTK-5069] Tokenize 'q' parameter in QueryHandler

In templated searches, tokenize query parameter and apply the template
for each token, joined by 'AND'

vtkio/vtk,vtkio/vtk,vtkio/vtk,vtkio/vtk,vtkio/vtk,vtkio/vtk,vtkio/vtk,vtkio/vtk