Rational: Except for FS9 we interpolate all aircraft in one loop at the same time. This can cause that some steps are always done at the same time for all aircraft of that loop. By passing the number we can more equally distribute such tasks, avoiding peaks.
Rational: the idea was to keep track of ground elevations of all aircraft and hence using them for other aircraft on ground. But the "hit" ratio is bad, so we only keep a small number of elevations ("the last ones") and use those. The size of the cache is dynamically adjusted. Not moving aircraft are still found in that much smaller list.
* interpolatedParts already "logs", do not do it twice
* performance: only recalculate "this->remoteAircraftSituationsAndChange(setup)" when there are new situations, not every interpolation step
The variant convertFromMemoizedJson trait did already do something similar, calling "convertFromJson" if the memoized version is not avilable. Now the function also "decides" based on the passed data itself.
* Random number generation was faulty, as we have to use RAND_MAX and not INT_MAX
* fixed CTestAircraftSituation::testSetRotateUpPitch, we need to use a defined front function otherwise it can be randomly outside range
* adjusted performance unit test a bit, as the value vary a lot
Ref T261
* the timestamp of status message was not copied, so every time a status message was sorted or otherwise assigned the ts got lost or wrongly assigned.
* this meant the log messages were in wrong order, leading to very confusing results in the log screen or file.
* also added new timestamp formatter
* new function "BlackMisc::CVariant displayRole(const PQ &pq) const" which can be used if the PQ is already available
* removed "IndexEnableGndFlag" as this is actually part of FSD network settings
* renamed to "isForcingVtolInterpolation"
* adjusted interpolator, and UI for setup
* min/max ground distance, also added in situation list
* use model's vtol/CG info
* improved scenery deviation guessing
* adjusted interpolator scenery deviation handling
* this is an optimization, it would work without that, but there are numerous calculations in interpolation which are faster and easier to debug in the same unit
* PQ switch unit functions use "const &PQUnit"
