fetch storage version from sharders

Author: Hitenjain14

code/go/0chain.net/blobbercore/allocation/protocol.go

@@ -111,7 +111,7 @@ func FetchAllocationFromEventsDB(ctx context.Context, allocationID string, alloc
 	a.FileOptions = sa.FileOptions
 	a.StartTime = sa.StartTime
 	// Only for testing purpose
-	a.StorageVersion = 1
+	a.StorageVersion = uint8(sa.StorageVersion)
 
 	m := map[string]interface{}{
 		"allocation_id":  a.ID,

code/go/0chain.net/blobbercore/handler/protocol.go

@@ -7,6 +7,7 @@ import (
 	"sync"
 	"time"
 
+	"github.com/0chain/blobber/code/go/0chain.net/blobbercore/allocation"
 	"github.com/0chain/blobber/code/go/0chain.net/blobbercore/config"
 	"github.com/0chain/blobber/code/go/0chain.net/blobbercore/datastore"
 	"github.com/0chain/blobber/code/go/0chain.net/blobbercore/filestore"
@@ -67,6 +68,7 @@ func getStorageNode() (*transaction.StorageNode, error) {
 	sn.StakePoolSettings.ServiceCharge = config.Configuration.ServiceCharge
 
 	sn.IsEnterprise = config.Configuration.IsEnterprise
+	sn.StorageVersion = allocation.StorageV2
 
 	return sn, nil
 }

code/go/0chain.net/core/transaction/entity.go

@@ -73,6 +73,7 @@ type StorageNode struct {
 	PublicKey         string            `json:"-"`
 	StakePoolSettings StakePoolSettings `json:"stake_pool_settings"`
 	IsEnterprise      bool              `json:"is_enterprise"`
+	StorageVersion    int               `json:"storage_version"`
 }
 
 type BlobberAllocation struct {
@@ -94,6 +95,7 @@ type StorageAllocation struct {
 	WritePool      uint64               `json:"write_pool"`
 	FileOptions    uint16               `json:"file_options"`
 	StartTime      common.Timestamp     `json:"start_time"`
+	StorageVersion int                  `json:"storage_version"`
 
 	DataShards   int64 `json:"data_shards"`
 	ParityShards int64 `json:"parity_shards"`