Dual-motor tailsitters

@Wisnufireball: interesting video and interesting contribution

@Tridge:

We tried for the first time a transition and were surprised,
that the vectored tailsitter tilts backwards.

Logfile: https://www.magentacloud.de/share/hetje-ou0p

Another question:
Are the Q_A_RAT_PIT / RLL / YAW axes seen from aircraft view, regardless of whether Q_TAILSIT_INPUT = 0 or 1?

Regards Rolf