Add return error on write actions (#104)

This error can be used to detect if the connection was broken,
for example if the server goes down between client sending data

Co-authored-by: Tobias Laving <lavingtobias@gmail.com>

.gitignore

@@ -0,0 +1 @@
+.idea/

netconf/transport.go

@@ -74,9 +74,9 @@ func (t *transportBasicIO) Send(data []byte) error {
 	}
 	dataInfo = append(dataInfo, data...)
 	dataInfo = append(dataInfo, seperator...)
-	t.Write(dataInfo)
+	_, err := t.Write(dataInfo)
 
-	return nil // TODO: Implement error handling!
+	return err
 }
 
 func (t *transportBasicIO) Receive() ([]byte, error) {