message: add heap frag logging to esp32
diff: @@ -2456,11 +2456,24 @@ void WiFiManager::DEBUG_WM(wm_debuglevel_t level,Generic text,Genericb textb) {
  uint32_t free;
  uint16_t max;
  uint8_t frag;
  + #ifdef ESP8266
  ESP.getHeapStats(&free, &max, &frag);
  _debugPort.printf("[MEM] free: %5d | max: %5d | frag: %3d%% \n", free, max, frag);
  - // _debugPort.print((String)ESP.getFreeHeap());
  - // _debugPort.print((String)ESP.getMaxFreeBlockSize());
  - // _debugPort.print((String)ESP.getHeapFragmentation());
  + #elif defined ESP32
  + // total_free_bytes; ///< Total free bytes in the heap. Equivalent to multi_free_heap_size().
  + // total_allocated_bytes; ///< Total bytes allocated to data in the heap.
  + // largest_free_block; ///< Size of largest free block in the heap. This is the largest malloc-able size.
  + // minimum_free_bytes; ///< Lifetime minimum free heap size. Equivalent to multi_minimum_free_heap_size().
  + // allocated_blocks; ///< Number of (variable size) blocks allocated in the heap.
  + // free_blocks; ///< Number of (variable size) free blocks in the heap.
  + // total_blocks; ///< Total number of (variable size) blocks in the heap.
  + multi_heap_info_t info;
  + heap_caps_get_info(&info, MALLOC_CAP_INTERNAL);
  + free = info.total_free_bytes;
  + max = info.largest_free_block;
  + frag = 100 - (max * 100) / free;
  + _debugPort.printf("[MEM] free: %5d | max: %5d | frag: %3d%% \n", free, max, frag);
  + #endif
  }
  _debugPort.print("*WM: ");
  if(_debugLevel == DEBUG_DEV) _debugPort.print("["+(String)level+"] ");
  