Tools registered for the project not developer

[BenVlodgi]

Currently, when you register a tool it is only registered for your own local editor. This change registers the tool at the project level, so collaborators don't have to manually register/unregister tools when they become available.

We've been using these settings, and they've been working. Settings are stored in Project/Config/DefaultEditorScriptingTools.ini

@HoussineMehnik you outlined this change here https://github.com/HoussineMehnik/UE4-EditorScriptingToolsPlugin/issues/16