Fixed bugs in reading hwp format and added test example

HwpFile/HWPFile.cpp

@@ -0,0 +1,28 @@
+#include "HWPFile.h"
+
+#include "HwpDoc/HWPFile_Private.h"
+#include "../DesktopEditor/common/File.h"
+
+CHWPFile::CHWPFile(const std::wstring& wsFileName)
+	: m_pInternal(new HWP::CHWPFile_Private(wsFileName))
+{}
+
+CHWPFile::~CHWPFile()
+{
+	if (nullptr != m_pInternal)
+		delete m_pInternal;
+}
+
+bool CHWPFile::Open()
+{
+	if (nullptr == m_pInternal)
+		return false;
+
+	return m_pInternal->Open();
+}
+
+void CHWPFile::Close()
+{
+	if (nullptr != m_pInternal)
+		m_pInternal->Close();
+}