Move gossip modules into solana-gossip crate (#17352)

* Move gossip modules to solana-gossip

* Update Protocol abi digest due to move

* Move gossip benches and hook up CI

* Remove unneeded Result entries

* Single use statements

gossip/benches/crds.rs

@@ -0,0 +1,33 @@
+#![feature(test)]
+
+extern crate test;
+
+use {
+    rand::{thread_rng, Rng},
+    rayon::ThreadPoolBuilder,
+    solana_gossip::{
+        crds::Crds, crds_gossip_pull::CRDS_GOSSIP_PULL_CRDS_TIMEOUT_MS, crds_value::CrdsValue,
+    },
+    solana_sdk::pubkey::Pubkey,
+    std::collections::HashMap,
+    test::Bencher,
+};
+
+#[bench]
+fn bench_find_old_labels(bencher: &mut Bencher) {
+    let thread_pool = ThreadPoolBuilder::new().build().unwrap();
+    let mut rng = thread_rng();
+    let mut crds = Crds::default();
+    let now = CRDS_GOSSIP_PULL_CRDS_TIMEOUT_MS + CRDS_GOSSIP_PULL_CRDS_TIMEOUT_MS / 1000;
+    std::iter::repeat_with(|| (CrdsValue::new_rand(&mut rng, None), rng.gen_range(0, now)))
+        .take(50_000)
+        .for_each(|(v, ts)| assert!(crds.insert(v, ts).is_ok()));
+    let mut timeouts = HashMap::new();
+    timeouts.insert(Pubkey::default(), CRDS_GOSSIP_PULL_CRDS_TIMEOUT_MS);
+    bencher.iter(|| {
+        let out = crds.find_old_labels(&thread_pool, now, &timeouts);
+        assert!(out.len() > 10);
+        assert!(out.len() < 250);
+        out
+    });
+}