BuildSystem: Move all userpace libraries under the userspace directory

As the number of libraries is increasing, root directory starts to
expand. This adds better organization for libraries

userspace/libraries/LibC/include/sys/utsname.h

@@ -0,0 +1,23 @@
+#ifndef _SYS_UTSNAME_H
+#define _SYS_UTSNAME_H 1
+
+// https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/sys_utsname.h.html
+
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+
+struct utsname
+{
+	char sysname[65];	/* Name of this implementation of the operating system. */
+	char nodename[65];	/* Name of this node within the communications network to which this node is attached, if any. */
+	char release[65];	/* Current release level of this implementation. */
+	char version[65];	/* Current version level of this release. */
+	char machine[65];	/* Name of the hardware type on which the system is running. */
+};
+
+int uname(struct utsname* name);
+
+__END_DECLS
+
+#endif