Embox 0.5.1
Embox 0.5.1

* Added JS support (duktape)
* Improved STM32 platforms
* Added STM32H7 series support
* Added RTC subsystem
* Improved  efm32zg sk3200
* Added UHCI USB  host controller support
* Improved time & clock sources subsystems
* Improved C++ support
* Improved block_dev subsystem
* Improved input devices subsystem
* Improved Qt support
* A lot of fixes and improvements

embox/embox,embox/embox,embox/embox,embox/embox,embox/embox,embox/embox