Some suggestions

I suggest some semantics:

1. Uniform equal operator
```
uniform = glm::vec3(0.0f); //also updates shaders
```

2. Attribute restrict types
```
vao.format(bindingID, /* may have additional settings */);
```

3. Buffer with types

```
Buffer buffer;
buffer.storage(256); //i.e. 256 floats
buffer.specialize(SSBO); //sorry for wrong enum name
float * mapped = buffer.data(); //don't forget set map flags before
buffer.unmap(); //Opengl conflict resolve
buffer[0] = 1.0f; //Auto map, don't forget unmap
```