vboxwrapper: actually create the 'virtualbox home directory' [WIP] #5307

Job	Run time
libs-build	6m 20s
client-armv6-build	3m 7s
apps-build	10m 46s
client-arm-build	3m 41s
libs-cmake-build	8m 5s
client-arm64-build	5m 26s
client-x86-build	3m 8s
client-x86_64-build	3m 38s
manager-build (assembleRelease)	4m 20s
manager-build (assembleXiaomi_release)	4m 7s
manager-build (assembleArmv6_release)	5m 5s
manager-build (jacocoTestReportDebug)	5m 42s
	1h 3m 25s

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