filter
ParamsFromValues(v url.Values, b bool)
Filter Params form Values for r.URL.Query()
in pat, gohttp, bone.
If b = true, delete Params from Values.
v := url.Values{}
v.Set(":name", "Ava")
v.Set("name", "Zoe")
b := false
p := ParamsFromValues(v, b)
// p.Get("name")