New cpp folder structure

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

libs/coding/streams_common.hpp

@@ -0,0 +1,53 @@
+#pragma once
+
+#include "base/base.hpp"
+#include "base/assert.hpp"
+
+#include <cstdint>
+#include <string>
+
+namespace stream
+{
+namespace detail
+{
+template <class TStream>
+void ReadString(TStream & s, std::string & t)
+{
+  uint32_t count;
+  s >> count;
+  t.reserve(count);
+
+  while (count > 0)
+  {
+    char c;
+    s >> c;
+    t.push_back(c);
+    --count;
+  }
+}
+
+template <class TStream, class TWriter>
+void WriteString(TStream & s, TWriter & w, std::string const & t)
+{
+  uint32_t const count = static_cast<uint32_t>(t.size());
+  s << count;
+  if (count > 0)
+    w.Write(t.c_str(), count);
+}
+
+template <class TStream>
+void ReadBool(TStream & s, bool & t)
+{
+  char tt;
+  s >> tt;
+  ASSERT(tt == 0 || tt == 1, (tt));
+  t = (tt != 0);
+}
+
+template <class TStream>
+void WriteBool(TStream & s, bool t)
+{
+  s << char(t ? 1 : 0);
+}
+}  // namespace detail
+}  // namespace stream