Windows: Extend support for binaries which allow detach

On Windows we require service_start to be called to parse and setup
requirements for '--detach' argument.
Affected binaries: ovn-trace, ovsdb-client, ovs-testcontroller.

Subsequent patches will be sent to adapt the tests with the new features.

Signed-off-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions.com>
Signed-off-by: Gurucharan Shetty <guru@ovn.org>

ovn/utilities/ovn-trace.c

@@ -73,6 +73,7 @@ int
 main(int argc, char *argv[])
 {
     set_program_name(argv[0]);
+    service_start(&argc, &argv);
     fatal_ignore_sigpipe();
     vlog_set_levels_from_string_assert("reconnect:warn");
     sbrec_init();

ovsdb/ovsdb-client.c

@@ -90,6 +90,7 @@ main(int argc, char *argv[])
 
     ovs_cmdl_proctitle_init(argc, argv);
     set_program_name(argv[0]);
+    service_start(&argc, &argv);
     parse_options(argc, argv);
     fatal_ignore_sigpipe();
 

utilities/ovs-testcontroller.c

@@ -105,6 +105,7 @@ main(int argc, char *argv[])
 
     ovs_cmdl_proctitle_init(argc, argv);
     set_program_name(argv[0]);
+    service_start(&argc, &argv);
     parse_options(argc, argv);
     fatal_ignore_sigpipe();