Enable the generic vertex attribute array at index

Property definitions

glesv2 :: glesv2 $ Sys :: glEnableVertexAttribArray
# Enable the generic vertex attribute array at `index`
fun glEnableVertexAttribArray(index: Int) `{ glEnableVertexAttribArray(index); `}
lib/glesv2/glesv2.nit:374,1--375,81