[RFC] Alternate disable_defaults syntax: plugins=[!TypeName]

[christopher-dG]

So currently there are a bunch of default plugins, such as Git, ProjectFile, etc. If you want to not use one of those plugins in your template, you do Template(; disable_defaults=[Git], plugins=[...]), which I've always thought was kind of clunky.
So... what if we overload ! for Type{<:Plugin} to allow for Template(; plugins=[PluginIWant, !DefaultIDontWant])?
I think it really has the same short-term discoverability as disable_defaults because you're going to have to look at the docstring for either one, and ! is IMO easier for users in the long term as they only have to worry about one keyword (plugins).
Maybe this is a terrible idea, so please don't hesitate to tell me so (or to tell me that you love the idea).