io-job: generic async IO copy job wrapper

meson.build

@@ -47,7 +47,7 @@ mconnect_src = [
 	'src/mconnect/utils.vala',
 	'src/mconnect/property-proxy.vala',
 	'src/mconnect/share.vala',
-	'src/mconnect/transfer.vala',
+	'src/mconnect/io-job.vala',
 	'src/mconnect/transfer-download.vala',
 	'src/mconnect/logging.vala',
 	'src/crypt/certificate.vala',