Execution parameters in dynamic protocol state

[janezpodhostnik]

Problem Definition

Execution parameters need to move into the dynamic protocol state.

Execution parameters is the following data:

• execution component version
• cadence component version
• execution effort weights
• execution memory weights
• execution memory limit

Benefits:

• This simplifies the programs cache, because it has an easier job with invalidation when execution parameters change and the execution parameters no longer need to be in the cache
• It removes the need to read this settings in the FVM. The read of execution parameters currently has a lot of special casing code (because you need some execution parameters to read the execution parameters)
• Enables us to remove addresses hardcoded in FVM (fvm/systemcontracts/system_contracts.go, executionParametersAddressTestnet & executionParametersAddressMainnet) because they would no longer be needed.