Add dependencies for non-default data targets

Change-Id: I54fd5be9ec211c36bcd295ed55bad9b4380b95c9
Download data from paraview.org as well

This is where Gerrit-uploaded data files will reside.

Change-Id: If2451c16bfcfbd4ece887de2e59780233822fe41
Prevent a duplicate data target rule

Change-Id: I11683439d8c1e7f10612111b5b39fc268f5fdab0
Update VTK

Change-Id: I6be864460b818be5b71764fc4fc971be4518d26f