Added a Morpho Blue integration

[jalextowle]

Resolved Issues

Fixes: #1099.

Description

This PR adds a Morpho Blue integration. This was a relatively straightforward integration, but there were a few interesting quirks that are worth noting:

• In order to calculate the base and vault shares conversions, we need to make use of MorphoBalancesLib. This adds a good amount of bytecode to our integrations, so I needed to make our MorphoBlueConversions library external.
• Morpho Blue's virtual share accounting means that totalSupplyShares is ~1 million times smaller than totalSupplyAssets, so the Morpho Blue vault share price is ~1e12. This results in the napkin math assertions in InstanceTest that multiply and divide by the vault share price to convert from base to vault shares having large tolerances (1e15). This was somewhat concerning, so I added several additional tests and assertions to verify that our precision isn't negatively effected by the small vault share price. After some significant testing, it seems that the fix for [CRASH REPORT] fuzz invariant -- close long after maturity result is not as expected #697 is working like a charm.

Review Checklists

Please check each item before approving the pull request. While going
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referenced in the checklist to make sure that they are reviewed. If there are
multiple reviewers, copy the checklists into sections titled ## [Reviewer Name].
If the PR doesn't touch Solidity, the corresponding checklist can
be removed.

[[Reviewer Name]]

• Tokens
  • Do all approve calls use forceApprove?
  • Do all transfer calls use safeTransfer?
  • Do all transferFrom calls use msg.sender as the from address?
    • If not, is the function access restricted to prevent unauthorized
      token spend?
• Low-level calls (call, delegatecall, staticcall, transfer, send)
  • Is the returned success boolean checked to handle failed calls?
  • If using delegatecall, are there strict access controls on the
    addresses that can be called? It shouldn't be possible to delegatecall
    arbitrary addresses, so the list of possible targets should either be
    immutable or tightly controlled by an admin.
• Reentrancy
  • Are functions that make external calls or transfer ether marked as nonReentrant?
    • If not, is there documentation that explains why reentrancy is
      not a concern or how it's mitigated?
• Gas Optimizations
  • Is the logic as simple as possible?
  • Are the storage values that are used repeatedly cached in stack or
    memory variables?
  • If loops are used, are there guards in place to avoid out-of-gas
    issues?
• Visibility
  • Are all payable functions restricted to avoid stuck ether?
• Math
  • Is all of the arithmetic checked or guarded by if-statements that will
    catch underflows?
  • If Safe functions are altered, are potential underflows and
    overflows caught so that a failure flag can be thrown?
  • Are all of the rounding directions clearly documented?
• Testing
  • Are there new or updated unit or integration tests?
  • Do the tests cover the happy paths?
  • Do the tests cover the unhappy paths?
  • Are there an adequate number of fuzz tests to ensure that we are
    covering the full input space?

[coveralls]

Pull Request Test Coverage Report for Build 9990193146

Details

• 58 of 76 (76.32%) changed or added relevant lines in 11 files are covered.
• 3 unchanged lines in 3 files lost coverage.
• Overall coverage decreased (-0.5%) to 91.602%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
contracts/src/instances/morpho-blue/MorphoBlueConversions.sol	7	8	87.5%
contracts/src/instances/morpho-blue/MorphoBlueBase.sol	18	22	81.82%
contracts/src/instances/morpho-blue/MorphoBlueTarget0.sol	1	6	16.67%
contracts/src/deployers/morpho-blue/MorphoBlueHyperdriveDeployerCoordinator.sol	18	26	69.23%

Files with Coverage Reduction	New Missed Lines	%
contracts/src/deployers/ezeth/EzETHHyperdriveDeployerCoordinator.sol	1	56.0%
contracts/src/deployers/lseth/LsETHHyperdriveDeployerCoordinator.sol	1	60.0%
contracts/src/deployers/reth/RETHHyperdriveDeployerCoordinator.sol	1	60.0%

Totals
Change from base Build 9978133834:	-0.5%
Covered Lines:	2138
Relevant Lines:	2334

---

💛 - Coveralls

[mcclurejt]

lgtm, comments aren't blocking

[cashd]

lgtm! thanks for this 🙏

[jrhea]

great work