Variable extraImportPluginsConst

extraImportPlugins: readonly [
    typeof TDSLoadPlugin,
    typeof ThreeMFLoadPlugin,
    typeof ColladaLoadPlugin,
    typeof AMFLoadPlugin,
    typeof GCodeLoadPlugin,
    typeof BVHLoadPlugin,
    typeof VOXLoadPlugin,
    typeof MDDLoadPlugin,
    typeof PCDLoadPlugin,
    typeof TiltLoadPlugin,
    typeof VRMLLoadPlugin,
    typeof LDrawLoadPlugin,
    typeof VTKLoadPlugin,
    typeof XYZLoadPlugin,
] = ...