Once the NextGenCore::createCollection() sets the generative scripts array, its size cant be changed: NextGenCore.sol#L138
The updateCollectionInfo() allows to replace specific scripts, but it doesnt allow to remove them, or add a new one, which makes it more difficult to perform updates; as deleted scripts would have to be replaced with an empty value, on multiple transactions. Also newly scripts will have to be squashed into existing scripts elements.
Allow the updateCollectionInfo() function to replace the whole scripts array.
