New cpp folder structure

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

libs/drape/gl_extensions_list.hpp

@@ -0,0 +1,36 @@
+#pragma once
+
+#include "drape/drape_global.hpp"
+
+#include "base/macros.hpp"
+
+#include <map>
+#include <string>
+
+namespace dp
+{
+class GLExtensionsList
+{
+public:
+  enum ExtensionName
+  {
+    VertexArrayObject,
+    MapBuffer,
+    UintIndices,
+    MapBufferRange
+  };
+
+  GLExtensionsList() = default;
+  void Init(dp::ApiVersion apiVersion);
+  bool IsSupported(ExtensionName extName) const;
+
+private:
+
+  void CheckExtension(ExtensionName enumName, std::string const & extName);
+  void SetExtension(ExtensionName enumName, bool isSupported);
+
+  std::map<ExtensionName, bool> m_supportedMap;
+
+  DISALLOW_COPY_AND_MOVE(GLExtensionsList);
+};
+}  // namespace dp