[Tracking] SVM: Generic over Transaction Type

[apfitzge]

Problem

Tracking issue for project to make SVM generic over the new SVMTransaction and SVMMessage traits.

The goal here is that we can make SVM unaware of the exact transaction type so long as it provides specific set of functionality, as defined by those traits.
This allows us to use more efficient transaction types where necessary, for example in block-production we can write a transaction type that is much faster to deserialize.

Proposed Solution

Living list of tasks here to support tracking all issues/prs related to goal of making SVM generic over the SVMTransaction and SVMMessage traits.

• FeeStructure: deprecate SDK calculations. Abstract over SVMMessage. #2116
• process_compute_budget_instructions use non-owned SVMInstruction from svm-transaction #2112
• SVM: account_loader.rs generic over SVMMessage #2109
• SVM: message_processor.rs generic over SVMMessage #2110
• SVM: transaction_processor.rs generic over SVMTransaction and SVMMessage #2111
• SVM: account_saver.rs generic over SVMTransaction/SVMMessage #2616
• Update SVM docs #2628

[apfitzge]

This work is following the addition of the SVMMessage and SVMTransaction traits in #1918.

[apfitzge]

@buffalojoec I think we should probably also update the docs for svm since with #2615 the argument is no longer necessarily SanitizedTransaction - though those are still permitted.