SDK refactor and improvements (sdk v2)

[aaitor]

SDK v2 epic including the following tasks:

Improvements

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1. Add support to Smart Wallets via ZeroDev integration #567
   enhancement +1
   
2. support node 18+ #579
   +0
   
3. Enable eslint require-await rule #557
   enhancement +1
   
4. The SDK should get Node URLs from the DDO when they exist #581
   bug +1
   
5. Add support for 3rd party fee calculator #404
   2 of 2
   enhancement sdk +2
   
6. https://github.com/nevermined-io/one/issues/843
7. Allow off-chain register and resolve methods #573
   +0
8. Making Curve & Aave contracts optional #576
   +0
   
9. Assets and nfts improvements in sdk #552
   refactor +1
   
10. Add support to Subscription NFTs with duration and credits #561
    nft sdk +2
    
11. SDK Adaptation to Contracts 3.3.x
12. upgrade to ethers v6 #529
    enhancement sdk web3 +3
    
13. Sdk should accept multiple services of the same type #475
    dependencies sdk +2
14. Improve the number of web3 calls the sdk makes #537
    enhancement performance sdk +3
    
15. Refactor DDO helper functions #518
    enhancement sdk +2
    
16. Add a SDK utility class to fetch DDO condition parameters #476
    enhancement sdk +2
    
17. Move compute tests to nightly
18. make the sdk a peer dependencie of sdk-dtp #554
    dtp +1
    
19. Wait for ethers new release and unskip ContractEvent tests #558
    bug refactor +2
    
20. Improve testing framework by updating mocha to latest version #562
    enhancement performance +2
    
21. Lazy registration of assets #553
    +0