add in paginated ref

Author: Hitenjain14

code/go/0chain.net/blobbercore/reference/ref.go

@@ -152,6 +152,7 @@ type PaginatedRef struct { //Gorm smart select fields.
 	EncryptedKeyPoint       string `gorm:"column:encrypted_key_point" json:"encrypted_key_point,omitempty"`
 	FileMetaHash            string `gorm:"column:file_meta_hash;size:64;not null" dirlist:"file_meta_hash" filelist:"file_meta_hash"`
 	SignatureVersion        int    `gorm:"column:signature_version" json:"signature_version,omitempty" filelist:"signature_version"`
+	EncryptionVersion       int    `gorm:"column:encryption_version" json:"encryption_version" filelist:"encryption_version"`
 
 	CreatedAt common.Timestamp `gorm:"column:created_at" json:"created_at,omitempty"`
 	UpdatedAt common.Timestamp `gorm:"column:updated_at" json:"updated_at,omitempty"`