CPP-3353 Objective-C support in CLion: registry key to enable OC-related settings

platform/util/resources/misc/registry.properties

@@ -1064,6 +1064,9 @@ cidr.indexer.thread.count.description=Number of CPU cores which will be used to
 cidr.max.intellisense.file.length=500000
 cidr.max.intellisense.file.length.description=Maximum length of C-based language file (in characters) IDE should provide code assistance for.
 
+clion.enable.objc.settings=false
+clion.enable.objc.settings.description=Enables Objective-C-specific code style, colors etc. settings.
+
 ide.window.shadow.painter=false
 ide.window.shadow.painter.restartRequired=true
 ide.window.shadow.painter.description=Enables light-weight shadows for heavy-weight child windows (Windows only)