Merkle Tree Hook Deployer changes

[aroralanuk]

Description

• Interceptor is the pair <hook, ism>
• MerkleTreeInterceptorDeployer for deploying merkle root hook and the StaticMerkleRootMultisigIsm on chain

Drive-by changes

• None

Related issues

• addresses https://github.com/hyperlane-xyz/issues/issues/621

Backward compatibility

Yes

Testing

Manual

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (v3@8e4f2bb). Click here to learn what that means.
The diff coverage is n/a.

Additional details and impacted files

@@          Coverage Diff          @@
##             v3    #2747   +/-   ##
=====================================
  Coverage      ?   64.32%           
=====================================
  Files         ?       98           
  Lines         ?      981           
  Branches      ?      101           
=====================================
  Hits          ?      631           
  Misses        ?      314           
  Partials      ?       36           

Components	Coverage Δ
core	51.61% <0.00%> (?)
hooks	69.78% <0.00%> (?)
isms	68.65% <0.00%> (?)
token	84.84% <0.00%> (?)
middlewares	73.17% <0.00%> (?)