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

Fixes: https://github.com/espressif/arduino-esp32/issues/866

* Update BLE Library

* Fix SD driver

* Update toolchain

* Update IDF to e5b2c1c

* fix NodeMCU-32S .build.board property

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

* fix compiler flags to be compatible to ESP8622/Arduino

see also "fix NodeMCU-32S .build.board property" #812 (https://github.com/espressif/arduino-esp32/pull/812#issuecomment-341990261)

`-DARDUINO_BOARD={build.board}` **is missing**

* Revert "fix NodeMCU-32S .build.board property"

This reverts commit ea57b1496a2e87d3977a31a29a4cf7d63216f008.

Fixes #694

Previously compiler.c.extra_flags was used in this recipe rather than compiler.S.extra_flags, which I believe to have been a typo.

* Update IDF to 65acd99

* Update platformio and arduino build paths and libs

* Update esptool binaries

* Add Sketch Update Library

* Add MDNS Library

* Add Arduino OTA Library

* add missing library file

* Add library files for Update

* Add missing headers

* fix ota command

* Add espota binary

* remove bad example

* PlatformIO does not auto forward declare methods like Arduino Builder

WiFi and BlueTooth can now be started and stopped at will.
basic functions added to esp32-hal to start and stop the BT radio
SimpleBLE class added to show the most basic functionality
Example to show how to switch between BT, WiFi or Both

* Add new partition scheme

* Init NVS early, so it can be used without BT or WiFi

* Add build time partitions compilation

* Fix wrong definition of SS pin

* Add support for core debug level selection

* update idf libs

With this step we remove all dependencies, but git. Mac and Linux come
with Python by default, so they will keep using get.py to update the
toolchain and support binaries. Windows users have an "All point and
click" installation option that requires only git and Arduino to be
downloaded.
Fingers crossed :)