Additional files can now be specified in feature pack manifest.
Feature packs can now be parsed/installed feature pack without the need for a .upack file
Removed feature packs for shared template resources
Moved shared template resource manifests into a FeaturePack folder and revised so they will work sans .upack
Removed shared feature packs from list of .upacks rocket builds.
[CL 2617901 by bruce nesbit in Main branch]
Hooked in feature packs to show in super search using tags in the FP manifests
Added some keywords to manifests for super search
[CL 2526727 by bruce nesbit in Main branch]
Added message to indicate compiling is going to happen when importing code FP. Also made code wait until its complete
Added provision for focus on a specifc asset after adding a feature pack
Revised class type names in feature pack manifests.
[CL 2425812 by Ben Marsh in Main branch]
* Multicast delegate Add* calls now return FDelegateHandles, and Remove* calls are now all deprecated, except for a new Remove function which takes a FDelegateHandle.
* New FConsoleManager::RegisterConsoleVariableSink_Handle and UnregisterConsoleVariableSink_Handle functions which work in terms of FConsoleVariableSinkHandle.
* Timer calls which don't take FTimerHandles are deprecated.
* FTicker::AddTicker now returns an FDelegateHandle and is removed by an overloaded Remove function.
* DEFINE_ONLINE_DELEGATE* macros now define _Handle variants of the Add/Remove functions which return/take handles.
* Various other handle-based registration changes.
* Some unity build fixes.
* Some simplification of delegate code.
* Fixes for lots of existing code to use handle-based registration and unregistration.
#codereview robert.manuszewski
[CL 2400883 by Steve Robb in Main branch]
Added display of asset/class info used to Add Content dialog
Fixed several cut/pasted comments regarding UMG styles that referred to shooter game
[CL 2392502 by bruce nesbit in Main branch]
