move @types to devDependencies

[zivni]

package.json has @types/long and @types/node in the dependencies section but I think it should be in the devDependencies section.

I installed in my project a library (newrelic) that uses this library and I got typescript errors as the typing doesn't match the version I use.

Do you really need those types at all, as I didn't see that you compile from TypeScript?

[thw0rted]

The project is able to create a statically-generated Typescript class for handling messages. I assumed that it needed some extra runtime Typescript stuff that would normally be in devDependencies. (I'm just a user though, so maybe the devs could weigh in here?)