Make it work with Factorio 2.0

[erplsf]

Tested on Windows by running on an early-game, Space Age save so I couldn't check the multiple if surfaces, planets or ships are broken.

These changes aim to close #133 and to close #123.

Supersedes #134 as that was done against master branch instead of dev.

[L0laapk3]

Code changes look good to me.

I tested it on a few saves:

• Everything seems to work correctly on my early game save.
• For my mid-late game saves, factorio crashes with an access violation 😛 I have created a bug report for this: https://forums.factorio.com/viewtopic.php?p=673762

I will do some investigative work and keep you up to date. If you want, feel free to reach out on discord, I can be found in the factorio server.

[erplsf]

Thanks!

[L0laapk3]

The access violation was already fixed in 2.0.48 on the experimental branch. There seem to be some issues still when snapshotting multiple surfaces at once.