Use FeatureSummary for cmake configuration

[lbeltrame]

FeatureSummary is a neat module in CMake (https://cmake.org/cmake/help/latest/module/FeatureSummary.html) which is very useful to check for required and optional dependencies and have the configuration step output at the end what's present and what's missing.

It's very useful for packagers because it gives a nice list of everything as opposed to failing for every find_package calls.

[g-fb]

Done 3976f16

[lbeltrame]

Thanks. However, it needs an adjustment to work properly. You will need:

find_package(Foobar)
set_package_properties(Foobar TYPE REQUIRED) 

for each package.

[g-fb]

Added find_package and set_package_properties for each dependency 2743c06