tried making naming more uniform and implemented most of the opengl managers

include/assets/prefetch_lookup.hpp

@@ -8,6 +8,9 @@
 #include "prefetch_lookups/shader_prefetch_lookup.hpp"
 #include "prefetch_lookups/texture_prefetch_lookup.hpp"
 
+namespace assets
+{
+
 struct prefetch_lookup
 {
 	texture_prefetch_lookup textures;
@@ -16,5 +19,7 @@ struct prefetch_lookup
 	mesh_prefetch_lookup meshes;
 	pose_prefetch_lookup poses;
 	point_cloud_prefetch_lookup point_clouds;
-	shader_prefetch_lookup shaders;
-};
+	shader_source_prefetch_lookup shader_sources;
+};
+
+}