Backporting changes done on UnrealGencpp repo

Commits:
ec77e8b - Fixes while parsing EditorEngine.h
5017429 - parse_complicated_definition fix when parsing Controller.h
aac0dd5 - Add  IRISCORE_API
049b59c - Support for attributes retated to an operator or function between the return type and the identifier/op (Thanks World.h...)
97d7e6d - Fix for attributes after name in using statements
9f204e7 - Support for final specifier on class & struct definitions
f0698cc - Added support for Spec_Delete (= delete on functions and operators) [Part 3]
1f6650a - Added support for Spec_Delete (= delete on functions and operators) [Part 2]
06ac8da - Added support for Spec_Delete (= delete on functions and operators)

base/components/gen/especifier.hpp

@@ -33,6 +33,7 @@ enum Specifier : u32
 	Spec_NoExceptions,
 	Spec_Override,
 	Spec_Pure,
+	Spec_Delete,
 	Spec_Volatile,
 	Spec_NumSpecifiers,
 	Spec_UnderlyingType = 0xffffffffu
@@ -67,6 +68,7 @@ inline Str spec_to_str(Specifier type)
 		{ "noexcept",      sizeof("noexcept") - 1      },
 		{ "override",      sizeof("override") - 1      },
 		{ "= 0",           sizeof("= 0") - 1           },
+		{ "= delete",      sizeof("= delete") - 1      },
 		{ "volatile",      sizeof("volatile") - 1      },
 	};
 	return lookup[type];
@@ -81,6 +83,7 @@ inline bool spec_is_trailing(Specifier specifier)
 		case Spec_NoExceptions:
 		case Spec_Override:
 		case Spec_Pure:
+		case Spec_Delete:
 		case Spec_Volatile:
 			return true;
 		default: