Add hashstorage

Author: AnkushinDaniil

p2p/hashstorage/hash_storage.go

@@ -0,0 +1,23 @@
+package hashstorage
+
+import (
+	_ "embed"
+
+	"github.com/NethermindEth/juno/core/felt"
+)
+
+const first0132SepoliaBlock = 86311
+
+//go:embed sepolia_block_hashes.bin
+var sepoliaBlockHashes []byte
+
+var SepoliaBlockHashesMap = make(map[uint64]*felt.Felt, first0132SepoliaBlock)
+
+//nolint:gochecknoinits
+func init() {
+	var offset uint64
+	for i := uint64(0); i < first0132SepoliaBlock; i++ {
+		offset = i * 32
+		SepoliaBlockHashesMap[i] = new(felt.Felt).SetBytes(sepoliaBlockHashes[offset : offset+32])
+	}
+}