The doitESPduino32/pins_Arduino.h lacks definitions for the common SPI pins names: SS, MOSI, MISO, SCK
This breaks compatibility with Arduino libs, including SPI.h/.cpp

This PR solves the issue while maintaining compatibility with previous pin naming (IO5/23/19/18), and ensures consistency with other boards variants.

New board addition request for an ESP32 Wrover based Developer Board

The code in the BLE library originates from https://github.com/nkolban/esp32-snippets/tree/master/cpp_utils as well as https://github.com/nkolban/ESP32_BLE_Arduino

The original code in the esp32-snippets library is apache-2.0 licence'ed.
In addition when Neil Kolban stopped maintaining this library he made it available with the express requirement that the licence stays as apache-2.0
(Please see: https://github.com/nkolban/esp32-snippets/issues/813)
"... I do require that it continue to be Apache Licensed and free of charge for any and all uses (private or commercial)."

This change is to clarify the licence of this library.

Proposed fix to #4627 as a remediation to PR #3995
#3995 introduced that a device detected on BLE would not be entered in vector if a callback has been defined. 
By doing so, it was not possible anymore to have a counter in a call back (AND device in vector) to limit the number of detected device in a single scan, which could crash ESP32 as a result.

WMath.cpp doesn't include Arduino.h, where makeWord(h, l) is declared, common denominator type therefore is uint8_t, which is in use already in Arduino.h, too. (#5230)

Fixes #5229

* add onMtuChanged to BLEServerCallbacks

Add method onMtuChanged to the BLEServerCallbacks so the application can be notified if the MTU size changes.

* Correct missing semicolon and misspelled method.

Correct missing semicolon and misspelled method.

Thi may happen if read() gets called repeatedly (such as in HttpClient to parse response headers) and the connection is closed unexpectedly or the remote peer may have unexpected behavior that causes the underlying socket to report an error. In that case read() itself calls stop(), which invalidates the receive buffer object. Then when read() is called again without checking, such as inside readStringUntil(), the _rxBuffer is null and ESP32 crashes.

* Add uPesy ESP32 DevKit boards support

Add support for the Trueverit Universal IoT Driver (https://www.trueverit.com)

The board will be released on market using electronic distributors soon

esp-dsp: master 7cc5073
esp-face: master 420fc7e
esp-rainmaker: f1b82c7
esp32-camera: master 6f8489e
esp_littlefs: master b58f00c

* Bump library versions to 2.0.0

* Fixed name on SD library (see #5181)

This PR lets the user override the LOOP STACK SIZE set in sdkconfig (for example with -DARDUINO_LOOP_STACK_SIZE=12288).

Pull request #4999 added setMTU function to BLEClient.cpp/.h, this line provides implementation of this added functionality to the BLE client example to resolve cases in which data from notifyCallback exceeds 20 characters (3 bytes for command type and attribute ID, 20 bytes for attribute data (char*)pData).

* Add files via upload

Adding of Contributing.rst file.

* Update CONTRIBUTING.rst

* Added condition to only use tinyusb as needed

* Removed esp32c3 from targets supporting tinyusb

* AP with old WPA should not be used due security flaws.
* restore behavior from 1.0.6, see https://github.com/espressif/arduino-esp32/blob/46d5afb17fb91965632dc5fef237117e1fe947fc/libraries/WiFi/src/WiFiAP.cpp#L127

Board images updated and added warning on Flash/PSRAM pins

add board KB32-FT

Added new BLE5 features to use on C3/S3 family:

extended scan,
extended/multi advertising
New code is not fancy (no feedback from events), but i think it is functional. To get feedback from events i am suggesting to use custom GAP callback, which is already implemented in BLEDevice.

- Use Serial.print instead of log_i for QR code helper information,
  so that it is always printed by default.
- Expose the RainMaker factory reset and wifi reset APIs.
- Simplify example to have only a Switch device. Create another example for custom device.
- Enable push button based Factory reset and Wi-Fi reset.
- Added support for the TimeZone service.
- Moved API doc to RainMaker library's top level README.
- Other minor doc changes.

* Removed ProS2 and added TinyS2 to boards.txt

* Fixed incorrect NUM_OUTPUT_PINS - should be 47 not 45
This is why my APA doesn't work on my FeatherS2 as it usess IO45 and the check is for < not <=

* TinyS2 from boards.txt got stomped with old proS2 stuff (no idea why), so adding it back in.

In esp32-hal-log, direct calls to ESP_LOG_x macros is more efficient than using intermediate function log_to_esp (#5081)

As indicated in https://github.com/espressif/arduino-esp32/issues/4845#issuecomment-820540642_ it is more efficient to call directly the ESP LOG macros. This spares a function call, a 512b buffer and a call to vsnprintf. No change in functionality.

Added new boards including one with brand new ESP32-PICO-V3-02

Fixes #5071

esp-dsp: master 7cc5073
esp-face: master 420fc7e
esp-rainmaker: f1b82c7
esp32-camera: master 2dded7c
esp_littlefs: master d268e18