fixes: https://github.com/espressif/arduino-esp32/issues/867

The .build.board=xx proptery is used for generating a macro named "ARDUINO_xxx".

C macro names should never have a "-" sign.

* current: ARDUINO_NodeMCU-32S
* should be: ARDUINO_=NodeMCU_32S

use minimal partitions

* Update boards.txt

* Create pins_arduino.h

Add Dongsen Tech Pocket 32 and fake "WeMos" WiFi&Bluetooth Battery (which is a Pocket 32 clone) (#620)

* Create new pocket_32 diretory for Pocket 32 board

* Create pins_arduino.h for pocket_32

* Update boards.txt to support Dongsen Tech Pocket 32 and fake "WeMos" WiFi&Bluetooth Battery

* add mhetesp32devkit and mhetesp32minikit

* add mhetesp32 variants

* Add board definition for espectro32

* Fix ESPectro32 board definition

* Create new espino32 diretory for ESPino32 board

* Delete wrong create file

* Create pins_arduino.h for espino32

* Update boards.txt to support ThaiEasyElec ESPino32

* Re-configure board name

Update boards files

Fixes: https://github.com/espressif/arduino-esp32/issues/339

Board from AI-Thinker

* add support for widora-air board

* change widora-air f_cpu error,from 400M to 240M

* Add ESP.getChipId() function to get ESP32's ChipID.

* change getChipId() to getEfuseMac()

* * Change board:Lolin32 to LOLIN32
* Update LED_BUILTIN pin for LOLIN32

* add DFRobot FireBeetle-ESP32 support

* add variant for fireBeetle-ESP32

* The name of the env variant is changed to firebeetle32

* Add build time partitions compilation

* Fix wrong definition of SS pin

* Add support for core debug level selection

* update idf libs

* created board defination and pin layout for hornbill dev and minima

* change in pin mapping

* Add "Noduino Quantum" board

* change the value of build.board from Quantum to QUANTUM

* Add from original Arduino.h

* Add board "ESPea32"

* cleanup

* cleanup

* Change SS to 5

* First addition of ESP320 support

* Updated maximum data size.