message: Add crate reference to public macros. Fixes
diff: macro_rules! criterion_group {
  (name = $name:ident; config = $config:expr; targets = $( $target:path ),+ $(,)*) => {
  pub fn $name() {
  - let mut criterion: Criterion = $config
  + let mut criterion: $crate::Criterion = $config
  .configure_from_args();
  $(
  $target(&mut criterion);
  @@ -72,7 +72,7 @@ macro_rules! criterion_group {
  ($name:ident, $( $target:path ),+ $(,)*) => {
  criterion_group!{
  name = $name;
  - config = Criterion::default();
  + config = $crate::Criterion::default();
  targets = $( $target ),+
  }
  }
  @@ -117,12 +117,12 @@ macro_rules! criterion_group {
  macro_rules! criterion_main {
  ( $( $group:path ),+ $(,)* ) => {
  fn main() {
  - criterion::init_logging();
  + $crate::init_logging();
  $(
  $group();
  )+
  - criterion::Criterion::default()
  + $crate::Criterion::default()
  .configure_from_args()
  .final_summary();
  }
  