switch to rawtoaces_data repo

[antond-weta]

Switch to using external repo for camera data.

[antond-weta]

converting this to a draft for now, as I'd like to make some more changes to the data repo

[KelSolaar]

Sorry, coming late (I was on a break). Is there a specific reason for not using a Git sub-module here that is pulled when cloning the repo?

[antond-weta]

Sorry, coming late (I was on a break). Is there a specific reason for not using a Git sub-module here that is pulled when cloning the repo?

I don't have a specific reason, as this is the first time I'm doing this. I believe Kimball had advised me against using sub-modules here (unless I misunderstood badly).

[KelSolaar]

It would be awesome for @kdt3rd to comment as this is adding quite a bit of code for functionality that we get for free basically with Git.

[antond-weta]

@KelSolaar I would suggest merging this as is for now, if you don't have any other concerns. I understand that we can switch to using git sub-modules later if needed, the change is self-contained and does not affect anything else.

A couple of arguments in support of the current solution off the top of my head:

• fetching the data-sources in cmake is more flexible, we can switch the repos conditionally; we may want, for example, pull additional camera models from the physlight repo if the matching cmake flag is set.
• fetching the data-sources in cmake we can check the compatible schema version and pick the corresponding tag

[KelSolaar]

Certainly fine by me!