move core tests to core (#3355)

* move core tests to core

* remove window

* fix up flaky tests

* test_entryfication needs a singly-threaded banking_stage

* move core benches to core

* remove unnecessary dependencies

* remove core as a member for now, test it like runtime

* stop running tests twice

* remove duplicate runs of tests in perf

core/benches/sigverify.rs

@@ -0,0 +1,21 @@
+#![feature(test)]
+
+extern crate test;
+
+use solana::packet::to_packets;
+use solana::sigverify;
+use solana::test_tx::test_tx;
+use test::Bencher;
+
+#[bench]
+fn bench_sigverify(bencher: &mut Bencher) {
+    let tx = test_tx();
+
+    // generate packet vector
+    let batches = to_packets(&vec![tx; 128]);
+
+    // verify packets
+    bencher.iter(|| {
+        let _ans = sigverify::ed25519_verify(&batches);
+    })
+}