Reducing size of monaco-editor dependency

Hi, I was doing a check of my node_modules folder in a medium sized project and I'm using monaco-editor as a dependency. Monaco-editor ended up being the largest dependency by size in my node_modules folder at 29MB.

I used the following command on Mac OS X to check this:

du -sm node_modules/* | sort -rn | head -n 20

I wanted to see why monaco-editor was taking up so much space so I checked the folder itself:

> du -sm node_modules/monaco-editor/*
1	node_modules/monaco-editor/CHANGELOG.md
1	node_modules/monaco-editor/LICENSE
1	node_modules/monaco-editor/README.md
1	node_modules/monaco-editor/ThirdPartyNotices.txt
16	node_modules/monaco-editor/dev
6	node_modules/monaco-editor/min
7	node_modules/monaco-editor/min-maps
1	node_modules/monaco-editor/monaco.d.ts
1	node_modules/monaco-editor/package.json

Those sizes are in MB. I noticed that monaco-editor ends up packaging "dev", "min" and "min-maps" in its package.

Since the npm monaco-editor package seems to be built by using a subset of the vscode repository, I was wondering if it was also possible to produce a reduced subset of the monaco-editor repository for people who don't need the "dev" and "min-maps" directories. Perhaps as "monaco-editor-min" or a separate package since npm doesn't support it under the same name. This would significantly reduce the size of package needed for a number of users seeing as how monaco-editor is downloaded over ten thousand times a month according to npm stats (https://www.npmjs.com/package/monaco-editor).

Start by tracing how the npm monaco-editor package is assembled and how the dev, min, and min-maps directories are included. Determine whether a reduced package can omit dev and min-maps while remaining usable, then verify that the published package contains only the intended files and still works for consumers.