Falco plugins don't yet have a standard installation location, and even
when they do we might not want to install all of them. Remove plugin
detection from FindSinsp.cmake and note that you should just pass the
paths to your plugins in SINSP_PLUGINS.
Add a FindSinsp CMake module, and use it in the Sysdig Bridge plugin
CMakeLists.txt. It still needs work, but should at least be usable on
more machines.
Conflicts:
plugins/epan/sysdig_bridge/CMakeLists.txt