restructure build to separate the 3 main components into 3 subdirectories

libi2pd for core libs

libi2pd_client for i2pd client libs

daemon for i2pd daemon libs

libi2pd/Gzip.h

@@ -0,0 +1,44 @@
+#ifndef GZIP_H__
+#define GZIP_H__
+
+#include <zlib.h>
+
+namespace i2p {
+namespace data {
+	class GzipInflator
+	{
+		public:
+
+			GzipInflator ();
+			~GzipInflator ();
+
+			size_t Inflate (const uint8_t * in, size_t inLen, uint8_t * out, size_t outLen);
+			/** @note @a os failbit will be set in case of error */
+			void Inflate (const uint8_t * in, size_t inLen, std::ostream& os);
+			void Inflate (std::istream& in, std::ostream& out);
+
+		private:
+
+			z_stream m_Inflator;
+			bool m_IsDirty;
+	};
+
+	class GzipDeflator
+	{
+		public:
+
+			GzipDeflator ();
+			~GzipDeflator ();
+
+			void SetCompressionLevel (int level);
+			size_t Deflate (const uint8_t * in, size_t inLen, uint8_t * out, size_t outLen);
+
+		private:
+
+			z_stream m_Deflator;
+			bool m_IsDirty;
+	};
+} // data
+} // i2p
+
+#endif /* GZIP_H__ */