New cpp folder structure

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

libs/shaders/program_pool.hpp

@@ -0,0 +1,18 @@
+#pragma once
+
+#include "shaders/programs.hpp"
+
+#include "drape/gpu_program.hpp"
+#include "drape/pointers.hpp"
+
+#include <string>
+
+namespace gpu
+{
+class ProgramPool
+{
+public:
+  virtual ~ProgramPool() = default;
+  virtual drape_ptr<dp::GpuProgram> Get(Program program) = 0;
+};
+}  // namespace gpu