Refactoring louloulibs and cmake

Use OBJECT libraries
Remove the louloulibs directory
Write FOUND variables in the cache

src/irc/irc_client.cpp

@@ -21,7 +21,6 @@
 #include <string>
 
 #include "biboumi.h"
-#include "louloulibs.h"
 
 using namespace std::string_literals;
 using namespace std::chrono_literals;