feat(StorageRegistry): settable data feeds

[horsefacts]

Motivation

The price feed and data feed in StorageRegistry are currently immutable. However, in the unlikely event of a price or data feed migration/redeployment, we'd like the ability for the contract owner to update these.

Change Summary

Move price feed/data feed to storage variables, add events and setter functions.

Merge Checklist

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PR-Codex overview

Detailed summary

• This PR focuses on making changes to the BundleRegistryGasUsageTest and IdRegistryGasUsageTest contracts, as well as the StorageRegistry contract and its associated tests.
• Notable changes include:
  • Renaming the testGasTrustedBatchRegister function in BundleRegistryGasUsageTest to testGasRegisterWithSig.
  • Updating the gas values for the testGasTrustedBatchRegister and testGasTrustedRegister functions in BundleRegistryGasUsageTest.
  • Updating the gas value for the testGasRegister function in IdRegistryGasUsageTest.
  • Adding new events SetPriceFeed and SetUptimeFeed to the StorageRegistry contract.
  • Modifying the setPriceFeed and setUptimeFeed functions in the StorageRegistry contract to emit the new events.
  • Importing the AggregatorV3Interface from the chainlink/v0.8/interfaces/AggregatorV3Interface.sol file in the StorageRegistryTest contract.

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[github-actions[bot]]

Coverage after merging horsefacts/settable-data-feeds into main will be

98.77%

Coverage Report

File	Stmts	Branches	Funcs	Lines	Uncovered Lines
src
Bundler.sol	100%	100%	100%	100%
FnameResolver.sol	100%	100%	100%	100%
IdRegistry.sol	100%	100%	100%	100%
KeyRegistry.sol	100%	100%	100%	100%
StorageRegistry.sol	100%	100%	100%	100%
src/lib
Signatures.sol	100%	100%	100%	100%
TransferHelper.sol	0%	0%	0%	0%	12, 17, 20, 20, 20
TrustedCaller.sol	100%	100%	100%	100%