WIP: Load texture positions (and more) from JSON

[FSMaxB]

This is still a work in progress.

• Make pairs of to_json, from_json for every struct
• Use these to generate JSON
• Hook up loading from JSON

[FSMaxB]

This stuff is quite prone to memory leaks, since it cannot be known which pointer points to a statically allocated resource and which at a dinamically allocated one.

But as long as the export and import aren't done too often, it should be fine.

[FSMaxB]

Sorry for taking so long. I'm not sure when I am going to be able to continue with this.

[eXpl0it3r]

No worries, I haven't been able to really work on the project myself.

[eXpl0it3r]

This was not closed intentional, but it was auto-close because I merged the chore/refactor branch. I changed the target and reopened the PR. Make sure you pull the new master and rebase your branch onto master.

[eXpl0it3r]

Oh, hehe totally forgot that I added you as contributor and that you were working in a branch that I have control over as well... 😏
Thanks for updating!

[eXpl0it3r]

Finally gotten around to this again and added the importing steps, seems to work very well so far. Also updated nlohmann JSON to 3.4.0 (latest), in case you want to check it out yourself @FSMaxB 🙂

Next step is to think about, if we'll just remove the whole export and hard-coded init code...