New cpp folder structure

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

libs/drape/buffer_base.hpp

@@ -0,0 +1,31 @@
+#pragma once
+
+#include <cstdint>
+
+namespace dp
+{
+class BufferBase
+{
+public:
+  BufferBase(uint8_t elementSize, uint32_t capacity);
+  virtual ~BufferBase() = default;
+
+  uint32_t GetCapacity() const;
+  uint32_t GetCurrentSize() const;
+  uint32_t GetAvailableSize() const;
+
+  uint8_t GetElementSize() const;
+
+  virtual void Seek(uint32_t elementNumber);
+
+protected:
+  void Resize(uint32_t elementCount);
+  void UploadData(uint32_t elementCount);
+  void SetDataSize(uint32_t elementCount);
+
+private:
+  uint8_t m_elementSize;
+  uint32_t m_capacity;
+  uint32_t m_size;
+};
+}  // namespace dp