ioc: combine registrars and detect QSRV1 #451

Job	Run time
Linux centos 7	5m 24s
Linux fedora latest	4m 25s
Native Linux (WError)	5m 25s
Native Linux (libc++ debug)	6m 34s
Native Linux (c++17)	5m 47s
Cross mingw64 DLL	11m 25s
Cross mingw64 static	10m 31s
RTEMS5	20m 20s
Native Linux with clang	5m 18s
Native Linux with libevent stable	6m 6s
Native Linux with 7.0.2	7m 34s
Native Linux with 3.15	5m 35s
Native Linux with 3.14	6m 10s
OSX	8m 48s
vs2019 DLL	8m 31s
vs2019 static	10m 34s
	2h 8m 27s

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