- Added new struct to hold instance data
- Removed on the fly created customs struct for storing the instance data
- The Mass StateTree instance data is not a fragment anymore
- Fixes crash when using StateTreeBrainComponent directly on actor
- Moved StateTree activation processor settings to Mass Behavior settings
#jira UE-133870
#rb Yoan.StAmant
#preflight 62178318db60b6b592190db8
[CL 19112506 by mikko mononen in ue5-main branch]
