Expose viewmodels whose creation type is "Create Instance" in the details panel of nested userwidgets and allow editing them independently.
#jira UE-185718
#rb christian.savoie, jared.joyal, Patrick.Boutot
[CL 30717868 by zahra nikbakht in ue5-main branch]
[FYI] Patrick.Boutot
Original CL Desc
-----------------------------------------------------------------
MVVM: Big rework of the MVVM view compiler. It add supports for conversion function to go from complex to simple. Supports pin split on simple conversion function. Add ability to to support setter function with more than one argument. Build the list of all the sources.
#jira UE-200602, UE-200602, UE-200602, UE-200602, UE-200602
#rb editor-ui-systems
[CL 29801739 by bob tellez in ue5-main branch]
Add PropertyHasFiltering method to complete MVVM allowlist API.
Make LocalizableMessage API exposed so that it can be allowlisted.
#rb yohann.dossantos byron.cornejo
[FYI] [at]Patrick.boutot
[CL 28521880 by daren cheng in ue5-main branch]
Update GetBindingInfoFromFieldPath to support viewmodel inside another viewmodel. Add unittest for the function.
Add DoesInitializeAtConstruction on the view class. That is to support manual initialization. When the flag is false, the user is responsible for initializing the view.
Add ReevaluateSourceCreator. A source that was discovered at compile time and added to the list of SourceCreator may need to be evaluated if the path contains notify. That function is similar to SetViewModel but finds the new value from the SourceCreator.
Fix issue when a binding destination can't be evaluated at initialization. Since we only reactivate the bindings link to a source in SetViewModel, some bindings were never registered and never executed after the SetViewModel properly set the binding destination.
Update the view class ToString functions with the new flags.
Prevent adding a new binding when the editor data contains a conversion function and a regular function. That may occur when the user started with a regular binding and changed it afterward for a conversion function. We may not want to reset the binding to be non destructive.
#prefligth 6419e837bb1320be412d274d, 641b068aee0aed13479e6ea3
[CL 24750233 by patrick boutot in ue5-main branch]
Add an option to show the detail view in the binding panel. This prevent the bad memory access in the customizer used by a the binding panel.
#preflight 640b5c260e1f02786bff27f5
[CL 24603096 by patrick boutot in ue5-main branch]
Move GlobalCollection to GameInstance subsystem.
Rename category from MVVM to Viewmodel.
#preflight 63d5e0bcba4fadeef09bdfc2
[CL 23927160 by patrick boutot in ue5-main branch]
* Updated public headers for ~170 engine plugins using iwyu to remove includes not needed. Removed includes are still available behind UE_ENABLE_INCLUDE_ORDER_DEPRECATED_IN_5_2
#preflight 63c08f4a2a6acaf1622bcc73
#rb none
[CL 23674775 by henrik karlsson in ue5-main branch]
