- move source file according with platformio standard directory structure

- remove lib_deps from platformio.ini since they are already in libs folder

src/Ota.cpp

@@ -0,0 +1,52 @@
+#include <Arduino.h>
+#include "Ota.h"
+#include "Logger.h"
+#include "RestartReason.h"
+
+#define FULL_PACKET 1436 // HTTP_UPLOAD_BUFLEN in WebServer,h
+
+void Ota::updateFirmware(uint8_t* buf, size_t size)
+{
+    if(!_updateStarted && size == 0)
+    {
+        Log->println("OTA upload cancelled, size is 0.");
+        return;
+    }
+
+    if (!_updateStarted)
+    { //If it's the first packet of OTA since bootup, begin OTA
+        Log->println("BeginOTA");
+        esp_ota_begin(esp_ota_get_next_update_partition(NULL), OTA_SIZE_UNKNOWN, &otaHandler);
+        _updateStarted = true;
+    }
+    esp_ota_write(otaHandler, buf, size);
+    if (size != FULL_PACKET)
+    {
+        esp_ota_end(otaHandler);
+        Log->println("EndOTA");
+        if (ESP_OK == esp_ota_set_boot_partition(esp_ota_get_next_update_partition(NULL)))
+        {
+            _updateCompleted = true;
+        }
+        else
+        {
+            Log->println("Upload Error");
+        }
+    }
+}
+
+bool Ota::updateStarted()
+{
+    return _updateStarted;
+}
+
+bool Ota::updateCompleted()
+{
+    return _updateCompleted;
+}
+
+void Ota::restart()
+{
+    _updateCompleted = false;
+    _updateStarted = false;
+}