Add src/apppaths.cpp

src/apppaths.cpp

@@ -0,0 +1,14 @@
+#include "apppaths.h"
+#include <QDir>
+#include <QStandardPaths>
+
+QString AppPaths::configRoot() {
+    const auto base = QStandardPaths::writableLocation(QStandardPaths::ConfigLocation);
+    return QDir(base).filePath("xmb");
+}
+QString AppPaths::xmbRoot() {
+    return QDir(configRoot()).filePath("XMB");
+}
+QString AppPaths::assetsRoot() {
+    return QDir(configRoot()).filePath("assets");
+}