Use the shader manager singleton in the renderer

inferno/src/inferno/render/renderer.cpp

@@ -75,7 +75,7 @@ namespace Inferno {
 // -----------------------------------------
 
 		// Create shader
-		s_quadBatch->shader = std::make_unique<Shader>("assets/glsl/batch-quad");
+		s_quadBatch->shader = ShaderManager::the().load("assets/glsl/batch-quad");
 		s_quadBatch->shader->bind();
 		s_quadBatch->shader->setInt("u_textures", samplers, s_quadBatch->textureUnitPerBatch);
 		s_quadBatch->shader->unbind();

inferno/src/inferno/render/renderer.h

@@ -47,7 +47,7 @@ namespace Inferno {
 		std::array<std::shared_ptr<Texture>, textureUnitPerBatch> textureUnits;
 
 		// GPU objects
-		std::unique_ptr<Shader> shader = nullptr;
+		std::shared_ptr<Shader> shader = nullptr;
 		std::shared_ptr<VertexArray> vertexArray = nullptr;
 	};