allow dest handler to handle folder destinations

src/fsfw_hal/host/HostFilesystem.cpp

@@ -160,3 +160,18 @@ ReturnValue_t HostFilesystem::truncateFile(FilesystemParams params) {
   ofstream of(path);
   return returnvalue::OK;
 }
+
+bool HostFilesystem::isDirectory(const char *path) { return filesystem::is_directory(path); }
+
+ReturnValue_t HostFilesystem::getBaseFilename(FilesystemParams params, char *nameBuf, size_t maxLen,
+                                              size_t &baseNameLen) {
+  std::string path(params.path);
+  std::string baseName = path.substr(path.find_last_of("/\\") + 1);
+  if (baseName.size() + 1 > maxLen) {
+    return returnvalue::FAILED;
+  }
+  std::memcpy(nameBuf, baseName.c_str(), baseName.size());
+  nameBuf[baseName.size()] = '\0';
+  baseNameLen = baseName.size();
+  return returnvalue::OK;
+}