Transitive dependency checks

[Michael Palimaka]

Hi,

In a some (not all) tier 3 frameworks, we check for transitive dependencies:

#NOTE: here the dependencies of dependencies are displayed as well, this
shouldn't be needed
#after cmake 3.0.0 is released
find_package(...)

I think this is no longer needed since we ship CMake config files for
each framework which pull in the required dependencies, and a number of
frameworks already omit the transitive checks and work fine.

I'd like to start sending review requests to clean this all up unless
anyone thinks this is not correct.

Best regards,
Michael