Rework `VertexArray::BindAttribute` to be easier to use

**Problem this feature should fix**
Currently the `VertexArray::BindAttribute` method is a bit tricky to use, as it requires to keep track of the stride and count.

**Expected solution**
We could automatically deduce stride and count by having 2 methods:
`VertexArray::PushAttribute` and `VertexArray::PopAttribute`

