Add some game metadata

[AstraLuma]

Adds some data to the samples dump to help other kinds of forwarder:

• the tick count, so we have a sense of absolute game time
• the entity ID of the combinator, so duplicate names can be tracked, if reasonable
• the surface name of the combinator

closes #4

closes #5

[ccbrown]

Thanks for the PR! In general, I'm happy to publish updates with additional data in the samples file as long as it's reasonably lightweight. Just one suggestion on this. Let me know if that works for you.

[AstraLuma]

Thank you, yeah, your suggestion is fine.