Libraries: Create top level directory for libraries.

Things were getting a little crowded in the project root, so this patch
moves the Lib*/ directories into Libraries/.

Libraries/LibC/arpa/inet.h

@@ -0,0 +1,42 @@
+#pragma once
+
+#include <endian.h>
+#include <sys/cdefs.h>
+#include <sys/socket.h>
+
+__BEGIN_DECLS
+
+#define INET_ADDRSTRLEN 16
+
+const char* inet_ntop(int af, const void* src, char* dst, socklen_t);
+int inet_pton(int af, const char* src, void* dst);
+
+inline uint16_t htons(uint16_t value)
+{
+#if BYTE_ORDER == LITTLE_ENDIAN
+    return __builtin_bswap16(value);
+#else
+    return value;
+#endif
+}
+
+inline uint16_t ntohs(uint16_t value)
+{
+    return htons(value);
+}
+
+inline uint32_t htonl(uint32_t value)
+{
+#if BYTE_ORDER == LITTLE_ENDIAN
+    return __builtin_bswap32(value);
+#else
+    return value;
+#endif
+}
+
+inline uint32_t ntohl(uint32_t value)
+{
+    return htonl(value);
+}
+
+__END_DECLS