Create a custom batchURI update function

[SamusElderg]

With the change to ERC-721, the URIs being updated if ever required will be a bit of a headache, with that said we might be able to do this:

• Create 4 functions per contract, something like batchUpdateSilverURI(), batchUpdateGoldURI() etc
• Have them loop the intended range of NFTs to update their URI link to point to a single IPFS link for example
• For this to work, would need the base URI to be '' null
• Might be computationally expensive, but would mean we don't need the URIs on a centralised server etc
• Could even interface it inside the batchMint function on deploy

Have a think about it...

[SamusElderg]

Have made some changes to make this irrelevant when using IPFS folder storage