1、删除部分三方库

2、整合ylib为一个lib库

include/util/codec.h

@@ -0,0 +1,49 @@
+#pragma once
+
+#include <string>
+#include "base/buffer.h"
+namespace ylib
+{
+    namespace codec
+    {
+        std::string md5(const ylib::buffer& data);
+        std::string to_utf8(const std::string& gbk);
+        std::string to_gbk(const std::string& utf8);
+
+
+        namespace gzip
+        {
+            ylib::buffer en(const ylib::buffer& data);
+            ylib::buffer de(const ylib::buffer& data);
+        }
+
+        namespace base64 {
+            std::string en(const ylib::buffer& data);
+            ylib::buffer de(const std::string& data);
+        }
+        namespace url {
+            std::string en(const ylib::buffer& data);
+            ylib::buffer de(const std::string& data);
+        }
+#if 1
+        namespace des3 {
+            ylib::buffer en(const ylib::buffer& data, const std::string& key);
+            ylib::buffer de(const ylib::buffer& data, const std::string& key);
+        }
+#endif
+        namespace aes {
+            enum class variant {
+                AES128 = 16,
+                AES192 = 24,
+                AES256 = 32
+            };
+            enum class mode {
+                CBC,
+                ECB
+            };
+            ylib::buffer en(const ylib::buffer& data, const std::string& key, ylib::codec::aes::variant variant, ylib::codec::aes::mode mode);
+            ylib::buffer de(const ylib::buffer& ciphertext, const std::string& key, variant var, mode mod);
+        }
+    }
+    
+}