New cpp folder structure

Signed-off-by: Alexander Borsuk <me@alex.bio>

libs/coding/file_writer.cpp

@@ -0,0 +1,50 @@
+#include "coding/file_writer.hpp"
+#include "coding/internal/file_data.hpp"
+
+#include <vector>
+
+FileWriter::FileWriter(std::string const & fileName, FileWriter::Op op)
+  : m_pFileData(std::make_unique<base::FileData>(fileName, static_cast<base::FileData::Op>(op)))
+{
+}
+
+FileWriter::~FileWriter() noexcept(false)
+{
+  // Note: FileWriter::Flush will be called (like non virtual method).
+  Flush();
+}
+
+uint64_t FileWriter::Pos() const
+{
+  return m_pFileData->Pos();
+}
+
+void FileWriter::Seek(uint64_t pos)
+{
+  m_pFileData->Seek(pos);
+}
+
+void FileWriter::Write(void const * p, size_t size)
+{
+  m_pFileData->Write(p, size);
+}
+
+std::string const & FileWriter::GetName() const
+{
+  return m_pFileData->GetName();
+}
+
+uint64_t FileWriter::Size() const
+{
+  return m_pFileData->Size();
+}
+
+void FileWriter::Flush() noexcept(false)
+{
+  m_pFileData->Flush();
+}
+
+void FileWriter::DeleteFileX(std::string const & fName)
+{
+  UNUSED_VALUE(base::DeleteFileX(fName));
+}