Add option for Scala case class, and easy configuration of other renderers.

[axos88]

One can now use

  buildInfoRenderFactory := ScalaCaseClassRenderer.apply,

To switch to another Renderer. Also added a Case Class renderer, which will create a case class AND an object that inherits the class. This makes it easy to use a jsonFormatter with the output.

[axos88]

Might be related: #95

[axos88]

Also: #47

[damdev]

Hi, is there any reason to not merge this PR? It will be pretty useful since the #95 issue it's fixed too

[eed3si9n]

The change looks nice. Sorry about the late response.

[axos88]

thx

[tobyweston]

👍 I was justing thinking the same when I saw this! thanks 😄

[marko-asplund]

I've added the below line in build.sbt

buildInfoRenderer := ScalaCaseObjectRenderer.apply

and get the following compile error:

buildInfoRenderer := ScalaCaseObjectRenderer.apply
                     ^
[error] Type error in expression```

What's the correct way to configure an alternative renderer?

[damdev]

@marko-asplund here https://github.com/sbt/sbt-buildinfo/blob/master/src/sbt-test/sbt-buildinfo/caseclassrenderer/build.sbt#L25 you have a example build with the ScalaCaseObjectRenderer configured. I think you are using the wrong setting key.