pkg: hide it by moving to _pkg.dev

The idea here is to preserve the history of `dev` branch development and its
code when merging with the `master`. Later this code could be moved into the
masters code where appropriate.

_pkg.dev/wire/payload/mblock.go

@@ -0,0 +1,38 @@
+package payload
+
+import (
+	"io"
+
+	"github.com/CityOfZion/neo-go/pkg/wire/util"
+
+	"github.com/CityOfZion/neo-go/pkg/wire/command"
+)
+
+// BlockMessage represents a block message on the neo-network
+type BlockMessage struct {
+	Block
+}
+
+// NewBlockMessage will return a block message object
+func NewBlockMessage() (*BlockMessage, error) {
+	return &BlockMessage{}, nil
+}
+
+// DecodePayload Implements Messager interface
+func (b *BlockMessage) DecodePayload(r io.Reader) error {
+	br := &util.BinReader{R: r}
+	b.Block.DecodePayload(br)
+	return br.Err
+}
+
+// EncodePayload Implements messager interface
+func (b *BlockMessage) EncodePayload(w io.Writer) error {
+	bw := &util.BinWriter{W: w}
+	b.Block.EncodePayload(bw)
+	return bw.Err
+}
+
+// Command Implements messager interface
+func (b *BlockMessage) Command() command.Type {
+	return command.Block
+}