Parse _usage from grid-protocol and feed it into Monaco Editor's autocomplete provider service

midi_send Lua method now has usage hint generated from the grid-fw repository. More functions will be documented this way.

[x] Implement API to access these hints from the grid-protocol NPM package
[x] Make sure that grid-editor does not access the protocol.json file directly anywhere in the code base, use proper interfaces!
[x] Add these usage hints to monaco editor's hover provider, result should be similar to what you expect in VScode
[ ] Also add this to autocomplete provider

intechstudio / grid-editor