Add ability to skip login window / auto login #1585

Job	Run time
code formatting check	1m 6s
cppcheck	10m 16s
min features with gcc	2m 35s
min features with g++	2m 36s
min features with clang	2m 47s
max features with gcc	4m 14s
max features with g++	3m 10s
max features with clang	5m 14s
max features with gcc and DEBUG	2m 27s
max features with gcc for 32-bit arch (legacy OS)	1m 55s
max features with g++ for 32-bit arch (legacy OS)	2m 53s
max features with clang for 32-bit arch (legacy OS)	2m 5s
	41m 18s

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