Compile time _NetManaged folder content

[MayGo]

Trying to solve the problem described in #78.
Currently, all networking objects are created when code is run from the definitions object
Not sure this can be done with typescript - to create files from definitions object with typescript transformer in compile time.
But surely we can create separate files and add transform to that?

For example(not actual implementation):
fileName: toggleCampaignStartButton.ts

@Definitions.ServerToClientEvent
interface {
   show: boolean;
}