Revise Metadata Upload Functions To Accept Parameters To Override Config Values

[R-K-H]

The metadata upload is extremely rigid and requires mappings which need to be updated depending on the token etc. Ideally we afford some better descriptors and parameters such that we feed into it image we want and token name and symbol.

These can be isolated and pulled / fetched from the DB (from the UI creation). The issue is we don't want people uploading bad data or weird stuff, so will have to think on that (vs the rigid design).

But the current implementation isn't exactly easy to use and would ideally be better designed for more modular use.