Installed package is noisy when found by CMake

[ulfllorenz]

This issue is more annoying than a problem, but should also be easy to fix.

In CMake, you can give the QUIET option to find_package() to suppress output. We use that to keep our CMake build free from informative, but (for our developers largely) useless messages.

HighFive is one of the few exceptions, it always prints the line with "(Re)Detecting Highfive dependencies". The generic way would be to evaluate "_FIND_QUIETLY", which should tell you if the user requested a quiet finding.