Specify the value of a generic vertex attribute

Property definitions

glesv2 :: glesv2 $ Sys :: glVertexAttrib1f
# Specify the value of a generic vertex attribute
fun glVertexAttrib1f(index: Int, x: Float) `{ glVertexAttrib1f(index, x); `}
lib/glesv2/glesv2.nit:403,1--404,76