COMP: Set CMake Policy CMP0022 to NEW

Since commit ed6c07d0 (Cleanup CMP0022 and CMP0023 warnings, 2013-08-19)
VTK uses target_link_libraries signatures to set the link interface
without direct manipulation of the old LINK_INTERFACE_LIBRARIES
property.  Set CMP0022 to NEW to avoid warnings about differences due to
generator expressions in INTERFACE_LINK_LIBRARIES, known to be safe.

Change-Id: I0afe5e316846e7883e3d6cb50a1dfa9bad0f6426
Merge topic 'cleanup-CMP0022-CMP0023' into master

6383648d COMP: Set CMake Policy CMP0022 to NEW