FAB-1035 move peer specific proto files to peer folder

https://jira.hyperledger.org/browse/FAB-1035

Just a reorg of the files in keeping with creation of
"common" and "orderer" package files with corresponding
import changes.

A final cleanup of removing unused messages and renaming
"2" suffixed protos needs to be done as a final cleanup

Change-Id: I81cfa970ca5b4ff668dd70247117bd4e34548ad5
Signed-off-by: Srinivasan Muralidharan <muralisr@us.ibm.com>

Author: Srinivasan Muralidharan

bddtests/chaincode.go

@@ -21,7 +21,7 @@ import (
 
 	"github.com/golang/protobuf/proto"
 	"github.com/hyperledger/fabric/core/util"
-	pb "github.com/hyperledger/fabric/protos"
+	pb "github.com/hyperledger/fabric/protos/peer"
 	putils "github.com/hyperledger/fabric/protos/utils"
 )
 

bddtests/endorser_test.go

@@ -26,7 +26,7 @@ import (
 	"github.com/DATA-DOG/godog"
 	"github.com/DATA-DOG/godog/gherkin"
 	"github.com/hyperledger/fabric/core/util"
-	pb "github.com/hyperledger/fabric/protos"
+	pb "github.com/hyperledger/fabric/protos/peer"
 	"golang.org/x/net/context"
 	"google.golang.org/grpc"
 )