build-sys: Relocate library to library/

All the dependent programs needed to have their includes moved too

Signed-off-by: Craig Small <csmall@dropbear.xyz>

library/include/pwcache.h

@@ -0,0 +1,12 @@
+#ifndef PROCPS_PROC_PWCACHE_H
+#define PROCPS_PROC_PWCACHE_H
+
+#include <sys/types.h>
+
+// used in pwcache and in readproc to set size of username or groupname
+#define P_G_SZ 33
+
+char *pwcache_get_user(uid_t uid);
+char *pwcache_get_group(gid_t gid);
+
+#endif