Include library.h in plugin.h

src/libcharon/daemon.c

@@ -34,6 +34,7 @@
 #include "daemon.h"
 
 #include <library.h>
+#include <plugins/plugin.h>
 #include <config/proposal.h>
 #include <kernel/kernel_handler.h>
 #include <processing/jobs/start_action_job.h>

src/libcharon/plugins/stroke/stroke_list.c

@@ -25,6 +25,7 @@
 #include <hydra.h>
 #include <daemon.h>
 #include <utils/linked_list.h>
+#include <plugins/plugin.h>
 #include <credentials/certificates/x509.h>
 #include <credentials/certificates/ac.h>
 #include <credentials/certificates/crl.h>