SmartConfig and ETH need some work to adapt to the new API

WiFiClient.connected() was hanging thinking there was still a connection when the remote had already closed. The one-liner in this patch addresses recv() returning 0 and errno==128. I couldn't find the corresponding errno for 128 but its caught by the case statement which includes EPIPE, ENOTCONN, ECONNRESET and ECONNABORTED so I assume its one of those. Broken pipe maybe?
```c
[D][WiFiClient.cpp:511] connected(): Disconnected: RES: 0, ERR: 128
```
EDIT: added comment to reflect that recv() can set errno when it returns 0.

* Fix flush

flush should not flush the read buffer, it should wait till all output is drained from the write buffer.

* Update BluetoothSerial.cpp
Co-authored-by: NMe No Dev <me-no-dev@users.noreply.github.com>

* IDF release/v3.3 46b12a560

* fix build

* IDF release/v3.3 367c3c09c

Number of pulses is limited to the reserved RMT memory for the channel. Very useful for PWM, Servo and other repeatable signals.

Fix recent commit d8b20984 (PR #3377) which includes esp_adc_cal component but does not update CMakeLists.txt (#3648)

The default value is 0 (= all channels) to preserve backward compatibility.

* add board HONEYLemon

Extend BLEDevice::setPower() to include powerType parameter. It's optional and set to ESP_BLE_PWR_TYPE_DEFAULT for compatibility. (#3623)

Extend BLEDevice::setPower() to include powerType parameter. It's optional and set to ESP_BLE_PWR_TYPE_DEFAULT for compatibility.

fixed the connected() function so that it only checks errno if recv returns a value of -1.

"in the even of an error, errno is set to indicate the error" --manpage

This fixes the ESP32 Webserver when dealing with a modern webserver with a slow SD card.

add the partition and flash size menus for the VintLabs board definitions.

Fixed incorrect board name for TinyPICO - You can now use this to detect it's a TinyPICO at compile time.... (#3567)

#ifdef ARDUINO_TINYPICO
   // It's a TinyPICO!
#endif

Added two boards from iarduino.ru based on ESP-32

Small change to insure wifi starts off and avoid crashing

* API compatibility to AVR, ESP8266, et al

* Add non-blocking HardwareSerial::read(buffer, size) extension (ESP8266 portability)

* Refactor for fewer indirect calls.

Currently we have no way to set BLE Advertisement Type.
We have an initial value of ADV_TYPE_IND and the member is private.

iBeacon should advertise with ADV_TYPE_NONCONN_IND.
esp-idf's example code specifies this value.

https://github.com/espressif/esp-idf/blob/93a8603c545fb8e54741d6685146e2f3b874378d/examples/bluetooth/bluedroid/ble/ble_ibeacon/main/ibeacon_demo.c#L57

* Updated BLERemoteCharacteristic to exposre esp_gatt_auth_req_t parameter for readValue and writeValue.

* Updated BLERemoteCharacteristic/Descriptor to expose a setAuth method to allow tweaking the authentication request type for that remotecharacteristic/descriptor without the need to add auth on each read/write.

`WIFI_REASON_CONNECTION_FAIL` has been added to `wifi_err_reason_t` some time ago:  
https://github.com/espressif/arduino-esp32/blob/cec3fca4ad4a39feb463f9298ab3238819732d50/tools/sdk/include/esp32/esp_wifi_types.h#L95

But it was still missing from `system_event_reasons` in `WiFiGeneric.cpp` sometimes causing panics here:  
https://github.com/espressif/arduino-esp32/blob/cec3fca4ad4a39feb463f9298ab3238819732d50/libraries/WiFi/src/WiFiGeneric.cpp#L348

* Utilize prepoc symbols for SPI pins
* Adjusts for GPIO pins when ALTERNATE_PINS is set

Added pinout for TTGO T Journal device and improved the intent of comments.

With the >= used let's say you have four RMT inputs, each using 2 channels wide for their receive buffer. This is 4*2 = 8 buffers which is the number of hardware buffers (MAX_CHANNELS). But, for the fourth input the starting buffer will be 6 (this is correct, the buffers used for each input are 0-1, 2-3, 4-5, 6-7). But, 6+2 = 8 which  is MAX_CHANNELS. This is valid but the >= would match against it and abort. It is correct to only abort if the value i+j is only greater than MAX_CHANNELS. Thus, a simple one character fix. Delete the equals sign.

* BLE: reception support multiple service data

* fix prev commit, i not inicialized

* WString explicit converters to reduce Flash size

This is a port from the same patch for ESP8266: https://github.com/esp8266/Arduino/pull/6759/files

If two headers with overlapping names are added while replace == true, like in:
```cpp
http.addHeader("api_token",  "pMXFOLpinQqajaRQJYMeWObg2XYmcX1");
http.addHeader("token", "1234");
```
then replacing went wrong. This is fixed with this PR.

Hi,

I have added a variant for the LilyGo TTGO LoRa32-OLED V2, which is similar to the LilyGo TTGO LoRa32-OLED V1 but with a different pinout. This will be useful for PlatformIO users, specially because I am also adding the board there as well.

Cheers.

* Add Uri with support for staticUri, regexUri and globUri

* Add newline to end of files

* Update example

* Suppress gcc warnings (unused params)