Add a global plug-in system

[L2750558108]

When creating a new project, it is always necessary to re-import commonly used plugins, and it may be better if they can be installed into the editor and enabled in each project

[Hiiamwilliam]

There's a proposal for that: #831

[L2750558108]

Can I ask when it might be implemented? It's been 2 years since that post...

[Zireael07]

You can ask but you won't get an answer - Godot is done on a best effort basis, there are never any ETAs