pipeline: persist shaders and pipelines per game and prewarm them at boot

src/graphics/host_gpu/renderer/renderContext.h

@@ -31,7 +31,8 @@ class GuestGpu;
 
 class RenderContext {
 public:
-	explicit RenderContext(GraphicContext& graphics);
+	explicit RenderContext(GraphicContext&              graphics,
+	                       const std::filesystem::path& shader_store = ShaderStorePath());
 	~RenderContext();
 	KYTY_CLASS_NO_COPY(RenderContext);