Big NFT sector cleanup!

[0xRobin]

This PR cleans up the NFT trades sub sector spells.

Baiscally it reduces every platform specific models to only the "events" models, removing the "trades", "fees", "burns", "mints" models which should all just be a view on the "events" model.

We had some inconsistencies with platforms only implementing some of these tables which resulted in platforms being present in events but not in trades or fees,..

New setup:

• Every platform implements just the "events" model
• All platforms are combined in the nft_events model
• 'nft_trades', nft_fees, nft_burns and 'nft_mints' are views on top of nft_events

This cleanup will also help a lot during the ongoing NFT restructuring migration.

There's a small impact on users as models like blur.fees don't exist anymore after this is merged and they should use blur.eventsor the overall nft.fees model.

Part 2:

1. Moved all the "old" (but still in use!) models under the '_sector/nft` directory structure.
2. added explicit schema's to those models
3. removed the expose_spel from those marketplace events models
4. split any marketplace union views in just the seperate version models (except opensea, that's a mess)
5. cleaned up dbt_project
6. introduces <marketplace>.trades view, which is the only marketplace specific view that will get exposed on the App

[0xRobin]

Here's a comparison between the production tables and the tables in the PR to confirm I've not forgotten any specific platform.
https://dune.com/queries/2424413

[0xRobin]

✔️ CI checks are actually passing.
Only checks not passing are DuneSQL checks for models that are currently already hidden in Trino.

[0xRobin]

✔️ checks are passing expect dunesql checks on big models due to java heap space.

[jeff-dude]

can you fix merge conflicts and let CI run again?

i gave a passthrough of the code, i think i follow the general flow:

• cleanup project file by removing directories which are being moved into the _sector directory, continuing cleanup we've discussed
• change nft.events to be view on top of all the "old" events base models, which were moved into new directory structure and clearly labeled old
• remove old base models from data explorer
• create platform-specific views on top of existing nft.trades spell
• nft trades/burns/fees also views, similar to events, kept to sector-level
  (follow up: but why is fees/trades on nft_events while burns is on nft_events_old?)
  (also, is mints missing?)
• remove and/or edit all the old directories that fed nft sector
• clean up seeds
• clean up tests

[0xRobin]

@jeff-dude
on mints:
We'll need to put some more thought into the mints structure, something I plan to do after we've finished all of nft.trades, so I've left it in the original directory.
on burns:
This is a special one, it only has data (4455 records) from nftb_bnb_events, so it's not really of any use in the current state.
I'll want to either remove it or replace it by a view on nft.transfers to the burn addresses. Again something for after all of nft.trades

[jeff-dude]

lets push this and only this through, let it ride in prod
edit: canceled the ci test

[0xRobin]

awesome, I'll monitor the next hourly run 👍