fixup! Register optional dig dependency

Signed-off-by: Alexandros Filios <[email protected]>

Author: alexandrosfilios

Diff for: integration/fabric/iou/sdk.go

@@ -48,11 +48,15 @@ func (p *SDK) Install() error {
 }
 
 func NewApproverSDK(registry node.Registry) *ApproverSDK {
-	return &ApproverSDK{SDK: NewSDK(registry)}
+	return NewApproverSDKFrom(NewSDK(registry))
+}
+
+func NewApproverSDKFrom(sdk dig2.SDK) *ApproverSDK {
+	return &ApproverSDK{SDK: sdk}
 }
 
 type ApproverSDK struct {
-	*SDK
+	dig2.SDK
 }
 
 func (p *ApproverSDK) Install() error {
@@ -68,11 +72,15 @@ func (p *ApproverSDK) Install() error {
 }
 
 func NewBorrowerSDK(registry node.Registry) *BorrowerSDK {
-	return &BorrowerSDK{SDK: NewSDK(registry)}
+	return NewBorrowerSDKFrom(NewSDK(registry))
+}
+
+func NewBorrowerSDKFrom(sdk dig2.SDK) *BorrowerSDK {
+	return &BorrowerSDK{SDK: sdk}
 }
 
 type BorrowerSDK struct {
-	*SDK
+	dig2.SDK
 }
 
 func (p *BorrowerSDK) Install() error {
@@ -89,11 +97,15 @@ func (p *BorrowerSDK) Install() error {
 }
 
 func NewLenderSDK(registry node.Registry) *LenderSDK {
-	return &LenderSDK{SDK: NewSDK(registry)}
+	return NewLenderSDKFrom(NewSDK(registry))
+}
+
+func NewLenderSDKFrom(sdk dig2.SDK) *LenderSDK {
+	return &LenderSDK{SDK: sdk}
 }
 
 type LenderSDK struct {
-	*SDK
+	dig2.SDK
 }
 
 func (p *LenderSDK) Install() error {