move all imports to own domain

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

broker/broker.go

@@ -1,11 +1,11 @@
 // Package broker is an interface used for asynchronous messaging
-package broker
+package broker // import "go.unistack.org/micro/v3/broker"
 
 import (
 	"context"
 	"errors"
 
-	"github.com/unistack-org/micro/v3/metadata"
+	"go.unistack.org/micro/v3/metadata"
 )
 
 // DefaultBroker default memory broker

broker/memory.go

@@ -4,12 +4,12 @@ import (
 	"context"
 	"sync"
 
-	"github.com/unistack-org/micro/v3/logger"
-	"github.com/unistack-org/micro/v3/metadata"
-	maddr "github.com/unistack-org/micro/v3/util/addr"
-	"github.com/unistack-org/micro/v3/util/id"
-	mnet "github.com/unistack-org/micro/v3/util/net"
-	"github.com/unistack-org/micro/v3/util/rand"
+	"go.unistack.org/micro/v3/logger"
+	"go.unistack.org/micro/v3/metadata"
+	maddr "go.unistack.org/micro/v3/util/addr"
+	"go.unistack.org/micro/v3/util/id"
+	mnet "go.unistack.org/micro/v3/util/net"
+	"go.unistack.org/micro/v3/util/rand"
 )
 
 type memoryBroker struct {

broker/memory_test.go

@@ -5,7 +5,7 @@ import (
 	"fmt"
 	"testing"
 
-	"github.com/unistack-org/micro/v3/metadata"
+	"go.unistack.org/micro/v3/metadata"
 )
 
 func TestMemoryBatchBroker(t *testing.T) {

broker/options.go

@@ -5,11 +5,11 @@ import (
 	"crypto/tls"
 	"time"
 
-	"github.com/unistack-org/micro/v3/codec"
-	"github.com/unistack-org/micro/v3/logger"
-	"github.com/unistack-org/micro/v3/meter"
-	"github.com/unistack-org/micro/v3/register"
-	"github.com/unistack-org/micro/v3/tracer"
+	"go.unistack.org/micro/v3/codec"
+	"go.unistack.org/micro/v3/logger"
+	"go.unistack.org/micro/v3/meter"
+	"go.unistack.org/micro/v3/register"
+	"go.unistack.org/micro/v3/tracer"
 )
 
 // Options struct