#change UBT: Added support for hot-reload when UBT is called from IDE and the current target is curring
#change Added support for hot-reload from VS to the engine
#change Refactored hot-reload functionality to a separarte module
#change Added hot-reload analytics events
[CL 2255801 by Robert Manuszewski in Main branch]
There is now a consistent set of methods for module loading, unloading and lookup that all behave in the same expected way.
- renamed GetModuleInterface to GetModule and made it not assert
- removed GetModuleInterfaceRef
- namespace enums to enum classes, NULL to nullptr
- moved important public methods to the top, so they're easier to discover
- added missing & improved existing documentation
- cleaned up existing use cases
[CL 2109936 by Max Preussner in Main branch]
