PSA: Moving of GDD info Ograf

[nytamin]

TLDR;

GDD will be adopted by Ograf and eventually deprecated.

Background

GDD (Graphics Data Definition) is a json-schema data definition for CasparCG Graphics, created by Superfly.tv in 2022.

It is referenced from the ograf specification, used for defining rich data input types.

Discussion

As brought up in #5 and later discussed in the Working Group, if would fit the ograf project well to adopt the GDD rich data inputs definitions, and maintain those discussions.

SuperFly.tv, via Johan Nyman (@nytamin) is open to the idea of moving the GDD definitions and eventually deprecating them in favor of ograf.