added FS libs

lib_standalone/LittleFS.cpp

@@ -0,0 +1,49 @@
+/*
+ * mcu-app - Microcontroller application framework
+ * Copyright 2022  Simon Arlott
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifdef ENV_NATIVE
+
+#include <Arduino.h>
+#include <FS.h>
+#include <LittleFS.h>
+
+fs::LittleFSFS LittleFS;
+
+namespace fs {
+
+LittleFSFS::LittleFSFS()
+    : FS() {
+}
+LittleFSFS::~LittleFSFS() {
+}
+bool LittleFSFS::begin(bool formatOnFail, const char * basePath, uint8_t maxOpenFiles, const char * partitionLabel) {
+    return true;
+}
+bool LittleFSFS::format() {
+    return true;
+}
+size_t LittleFSFS::totalBytes() {
+    return SIZE_MAX;
+}
+size_t LittleFSFS::usedBytes() {
+    return 0;
+}
+void LittleFSFS::end() {
+}
+
+} // namespace fs
+#endif