Updated Bootloader/LLD, fixed makefiles, working test send/receive
Removed git status text
Powermanagment unittest data send/receive
The makefiles for core/ and unittests/ have been enhanced for convenience.
Added new periphery hardware (PCAL6524 GPIO extender and AT42QT1050 touch sensor) to the PowerManagement, including unit tests.
updated all file headers to 2019
All contents of the os/ folder has been moved one directory up.