Embox 0.3.27
Embox 0.3.27

* Add support for AArch64
* Add support for i.MX8
* Improve C++ support
* Enable Qt on STM32F7-Discovery
* Enable OpenCV on STM32F7-Discovery
* Improve ld script declarations in templates
* A lot of improvements in memory management subsystem
* Enable MMU for 'e2k' arch
* Improve support of STM32 Discovery boards
* A lot of fixes

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