Pull streamer out into its own module. (#8917)

automerge

core/src/sigverify_shreds.rs

@@ -1,11 +1,11 @@
 #![allow(clippy::implicit_hasher)]
-use crate::packet::{limited_deserialize, Packets};
 use crate::sigverify;
 use crate::sigverify_stage::SigVerifier;
 use solana_ledger::bank_forks::BankForks;
 use solana_ledger::leader_schedule_cache::LeaderScheduleCache;
 use solana_ledger::shred::{OFFSET_OF_SHRED_SLOT, SIZE_OF_SHRED_SLOT};
 use solana_ledger::sigverify_shreds::verify_shreds_gpu;
+use solana_perf::packet::{limited_deserialize, Packets};
 use solana_perf::recycler_cache::RecyclerCache;
 use std::collections::{HashMap, HashSet};
 use std::sync::{Arc, RwLock};
@@ -73,8 +73,8 @@ impl SigVerifier for ShredSigVerifier {
 pub mod tests {
     use super::*;
     use crate::genesis_utils::create_genesis_config_with_leader;
-    use crate::packet::Packet;
     use solana_ledger::shred::{Shred, Shredder};
+    use solana_perf::packet::Packet;
     use solana_runtime::bank::Bank;
     use solana_sdk::signature::{Keypair, Signer};