Variable: FORMAT
constFORMAT:"three-ntc"='three-ntc'
The .ntc file format identifier/version - see training/NTCManifest.js
(encoder) and ../loaders/NTCLoader.js (decoder). Declared here, not in
NTCManifest.js, since NTCLoader.js (runtime, no training dependencies)
needs it too, and this file is the one shared foundation both the
runtime decode path and the training/export path already build on.