Bluepad32 v2.4.0

[2.4.0] - 2021-12-26

New

• Arduino platform:
  This time for real. Generic ESP32 modules are supported.
  It is possible to have Bluepad32 + Arduino in a generic ESP32 module.
  Supported via ESP-IDF toolchain.
  A "bluepad32_arduino" ESP-IDF component was added with helper classes.
• Bluepad32 is a ESP-IDF "component":
  It makes easier to embed Bluepad32 in other projects.
• BLE: WIP. For the moment it is disabled.

Changed

• Update BTStack. Using hash: 0f2a810173d1d70943d1c915bffd6f9b1171e8f6
• Update ESP-IDF to latest v4.3 version. Using hash: da6c5be6c15e1c1854d91787fa166f426568d678
• idf.py: uses new ESP-IDF cmake functions, works as intented
• sdkconfig: removed. Using sdkconfig.defauls now. Easier to mantain.
• sdkconfig: coredump is stored in flash, and not dumped in UART console.
• Kconfig: Moved most uni_config.h defines to Kconfig
• uni_conn: Placed connection variables in uni_conn instead of having them in uni_device.
  uni_device has a uni_conn_t now.
• clang-format: switched to 4-space indent, 120-column-width

Fixed

• crc32_le() fixed. ESP32 does not call our code. Fixes core dumps and other related crc32 features.
• Unijoysticle: Turn off LEDs when gamepad disconnects.
• core: When a gamepad disconnects, it resets it state, allowing re-connecting it again (issue #1)