fix next edition calculation for burned items

[samuelvanderwaal]

Burning an edition decreases the supply, which breaks the way Fixed Price Sale currently calculates the next edition number. this PR uses the passed in edition marker and finds the first available edition on that particular marker. It has to figure out which edition marker is passed in, in order to determine the correct edition number, so must do a loop deriving the edition marker PDAs and comparing them against what is passed in. For large edition numbers this might use up available compute units.

In addition, it adds a buy_v2 that requires passing in the edition marker number in edition to the edition marker PDA. This allows a single derivation to be made to calculate the edition number, but would be a breaking change if applied to buy. Since the accounts are identical you continue to use the Buy account struct and only use the BuyV2 instruction struct for the additional argument. This allows reducing code duplication.

[github-actions]

Workflow Verify package library found differences when running yarn api:gen in the JS lib for fixed-price-sale. Please see the job for more details: https://github.com/metaplex-foundation/metaplex-program-library/actions/runs/5383234704.

[github-actions]

Workflow Verify package library found differences when running yarn api:gen in the JS lib for fixed-price-sale. Please see the job for more details: https://github.com/metaplex-foundation/metaplex-program-library/actions/runs/5383278683.

[github-actions]

Workflow Verify package library found differences when running yarn api:gen in the JS lib for fixed-price-sale. Please see the job for more details: https://github.com/metaplex-foundation/metaplex-program-library/actions/runs/5479272484.

[github-actions]

Workflow Verify package library found differences when running yarn api:gen in the JS lib for fixed-price-sale. Please see the job for more details: https://github.com/metaplex-foundation/metaplex-program-library/actions/runs/5513009983.

[github-actions]

Workflow Verify package library found differences when running yarn api:gen in the JS lib for fixed-price-sale. Please see the job for more details: https://github.com/metaplex-foundation/metaplex-program-library/actions/runs/5513034908.