db/upnp: move plugin source to upnp directory

Makefile.am

@@ -517,7 +517,7 @@ DB_LIBS = \
 if HAVE_LIBUPNP
 libdb_plugins_a_SOURCES += \
 	$(UPNP_SOURCES) \
-	src/db/plugins/UpnpDatabasePlugin.cxx src/db/plugins/UpnpDatabasePlugin.hxx \
+	src/db/plugins/upnp/UpnpDatabasePlugin.cxx src/db/plugins/upnp/UpnpDatabasePlugin.hxx \
 	src/db/plugins/upnp/Tags.cxx src/db/plugins/upnp/Tags.hxx \
 	src/db/plugins/upnp/ContentDirectoryService.cxx \
 	src/db/plugins/upnp/Directory.cxx src/db/plugins/upnp/Directory.hxx \

src/db/Registry.cxx

@@ -22,7 +22,7 @@
 #include "DatabasePlugin.hxx"
 #include "plugins/SimpleDatabasePlugin.hxx"
 #include "plugins/ProxyDatabasePlugin.hxx"
-#include "plugins/UpnpDatabasePlugin.hxx"
+#include "plugins/upnp/UpnpDatabasePlugin.hxx"
 
 #include <string.h>
 

src/db/plugins/upnp/UpnpDatabasePlugin.cxx

@@ -19,13 +19,13 @@
 
 #include "config.h"
 #include "UpnpDatabasePlugin.hxx"
+#include "Directory.hxx"
+#include "Tags.hxx"
 #include "lib/upnp/Domain.hxx"
 #include "lib/upnp/ClientInit.hxx"
 #include "lib/upnp/Discovery.hxx"
 #include "lib/upnp/ContentDirectoryService.hxx"
 #include "lib/upnp/Util.hxx"
-#include "upnp/Directory.hxx"
-#include "upnp/Tags.hxx"
 #include "db/Interface.hxx"
 #include "db/DatabasePlugin.hxx"
 #include "db/Selection.hxx"