cli: support for generate non bundled files

[Psy-Kai]

Hello,

is it possible to support generating js/ts files per proto-file? This would reflect the workflow of the protoc more. It also makes it much simpler to integrate with other tools. Normally a developer would already use a bundler so generating not bundled files would not be a problem. And if that feature is a option (like --sparse) non of the current functionality gets lost.

[abhchand]

Is there any progress on this feature? This library is overall much better than google's own JS Protobuf implementation, but the one thing Google's implementation does better is that it produces a separate .ts/.js output file for each .proto file.

Not only is this easier to read, it allows devs to selectively import just the functionality they need for a given pack (e.g if you are using webpack) instead of wastefully importing all bundled .proto files that this library generates.

Thanks!