ETCM-167: Flattened the crypto package to avoid shadowing.

Author: aakoshh

src/main/scala/io/iohk/ethereum/network/discovery/crypto/Secp256k1SigAlg.scala renamed to src/main/scala/io/iohk/ethereum/network/discovery/Secp256k1SigAlg.scala

@@ -1,4 +1,4 @@
-package io.iohk.ethereum.network.discovery.crypto
+package io.iohk.ethereum.network.discovery
 
 import akka.util.ByteString
 import io.iohk.ethereum.crypto

src/test/scala/io/iohk/ethereum/network/discovery/crypto/Secp256k1SigAlgSpec.scala renamed to src/test/scala/io/iohk/ethereum/network/discovery/Secp256k1SigAlgSpec.scala

@@ -1,4 +1,4 @@
-package io.iohk.ethereum.network.discovery.crypto
+package io.iohk.ethereum.network.discovery
 
 import org.scalatest.flatspec.AnyFlatSpec
 import org.scalatest.matchers.should.Matchers

src/test/scala/io/iohk/ethereum/network/discovery/codecs/EIP8CodecsSpec.scala

@@ -4,7 +4,7 @@ import org.scalatest.matchers.should.Matchers
 import org.scalatest.flatspec.AnyFlatSpec
 import io.iohk.scalanet.discovery.ethereum.v4.{Packet, Payload}
 import io.iohk.scalanet.discovery.crypto.{SigAlg, PrivateKey}
-import io.iohk.ethereum.network.discovery.crypto.Secp256k1SigAlg
+import io.iohk.ethereum.network.discovery.Secp256k1SigAlg
 import scodec.bits.BitVector
 import scodec.Codec
 import java.net.InetAddress

src/test/scala/io/iohk/ethereum/network/discovery/codecs/ENRCodecsSpec.scala

@@ -5,7 +5,7 @@ import org.scalatest.flatspec.AnyFlatSpec
 import io.iohk.scalanet.discovery.ethereum.{Node, EthereumNodeRecord}
 import io.iohk.scalanet.discovery.crypto.{SigAlg, PrivateKey}
 import io.iohk.scalanet.discovery.hash.{Hash, Keccak256}
-import io.iohk.ethereum.network.discovery.crypto.Secp256k1SigAlg
+import io.iohk.ethereum.network.discovery.Secp256k1SigAlg
 import io.iohk.ethereum.rlp
 import io.iohk.ethereum.rlp.{RLPList, RLPEncoder}
 import io.iohk.ethereum.rlp.RLPImplicits._