Feature/port 2fa features 2 #48

Job	Run time
Coding Standard & Static Analysis	34s
testsuite (8.1, sqlite)	25s
testsuite (8.1, mysql)	38s
testsuite (8.1, pgsql)	25s
testsuite (8.2, pgsql)	28s
testsuite (8.3, mysql)	28s
testsuite (8.3, pgsql)	29s
testsuite (8.2, sqlite)	26s
testsuite (8.2, mysql)	35s
testsuite (8.3, sqlite)	23s
	4m 51s

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