Incorporate bsdmake into buildsystem and reorganize libs

lib/libsys/sys_setgrant.c

@@ -0,0 +1,14 @@
+
+#include "syslib.h"
+
+#include <minix/safecopies.h>
+
+int sys_setgrant(cp_grant_t *grants, int ngrants)
+{
+  message m;
+
+  m.SG_ADDR = (char *) grants;
+  m.SG_SIZE = ngrants;
+
+  return _kernel_call(SYS_SETGRANT, &m);
+}